<p> Algebra and Function Practice</p><p>1) If 4a+1=64, what is the value of a? A) 15.75 C) 14.5 B) 14.75 D) 16</p><p>2) If 2ab+6a=4 and a=½, then b =?</p><p>A) 1 B) 2 C) 3 D) 4</p><p>3) 6b²-24b+24=? A) 6 (b-4) B) 6 (b-4) ² C) (6-2) ² D) 6 (b-2) ²</p><p>4) What is 4x+5x=? A) 1x B) 20x C) –9x D) 9x</p><p>5) The price of a sweater went up 20% since last year. If last years price was x, what is this years price in term x? A) 1.2x B) 3.6x C) 0.5x D) 0.2x</p><p>6) If rs+4 which of the following CANNOT be a value for s? A) -5 B) -1 C) -4 D) 0</p><p>7) Julie has cats, fish, and frogs for pets. The number of frogs she has is more than the number of cats, and the number of fish is ³ times the number of frogs. Of the following, which could be the total number of these pets? A) 15 B) 19 C) 17 D) 12 Algebra and Function Practice</p><p>8) For what value of k is (k+3)²=(k-3)²? A) 0 B) 4 C) 6 D) 45 </p><p>9) Solve 5 ´\/¯x +14= 29 A) 7 B) 4 C) 6 D) 9</p><p>10) In a chemistry class, s students are to be assigned to work in g lab groups for the semester. If s>g and if no student works in more than one group, which of the following calculations will determine approximately how many students should be in each lab group?</p><p>A) gs B) s-g C) g-s D) s/g</p><p>11) Tickets for a play cost $6 each for adults and $3 each for children. If 160 of these tickets were bought for a total of $816 how many adult’s tickets were bought? A) 110 B) 111 C) 112 D) 115</p><p>12) Let r◊s=rs+s for all integers r and s If r◊s =0 and s does not equal 0 , what must r equal?</p><p>A) -2 B) -1 C) 1 D) 2</p><p>13) The cells of a certain type of bacteria increase in number by each splitting into two cells every 30 minutes. At this rate, if a colony of this type of bacteria starts with a single cell, how many hours elapse before the colony contains 2 to the 11 power cells?</p><p>A) 5.5 Algebra and Function Practice</p><p>B) 5.7 C) 6.0 D) 7.5 </p><p>14) Luis earns w dollars an hour for 3x hours and then earns y dollars an hour for x more hours. In terms of w,x, and y. how many dollars did he earn in all? </p><p>A) x(3w+y) B) x(w+3y) C) 4x(3w+y) D) 4x(w+3y) 15) If x-7=2y and x=5+3y what is the value of y?</p><p>A)-5 B) –2 C) 2 D) 5 </p><p>16) If e+f=-1 then (e+f)² =?</p><p>A) -1 B) 0 C) 1/4 D) 1</p><p>17) If 2px3p=2/5x3/5 and p>0 what is the value of p? </p><p>A) 4 B) 6 C) .2 D) .1</p><p>18) If x² what are the possible values of x? </p><p>A) x>4 B) x<4 C) x<-4 or x>4 D) x>-4</p><p>19) Solve the system equations for x and y? –3x-2y=8 5x+y=3</p><p>A) x=4 and y=7 B) x=2 and y= -7 C) x=6 and y=2 D) x=4 and y=7 Algebra and Function Practice</p>