<p> Review for Test</p><p>Name: ______Date: ______Pre-Algebra CW/HW #96</p><p>1. The exact density of copper is 8.94 g/m3. Ben guessed the density of copper to be 9 g/m3.</p><p>What is the absolute error?</p><p>What is the percent error?</p><p>2. Mr. Rodriguez invests $2000 in a savings plan. The savings account pays an annual interest rate of % on the amount he put in at the end of each year. </p><p>How much will Mr. Rodriguez earn if he leaves his money in the savings plan for 10 years?</p><p>How much will be in his savings plan at the end of 10 years?</p><p>After how many years will Mr. Rodriguez have increased his original investment by more than 50%?</p><p>3. What is the percent of the following 36 points whose product of x-coordinate and y-coordinate is less than or equal to 9.</p><p>4. 49.5 is what percent of 33?</p><p>80 is 120% of what?</p><p>What is 35 decreased by 18%? 5. Use the following table to answer the questions below. Review for Test</p><p>Gallons (g) Miles Driven (m) 8 224 10 280 4 112</p><p>Is the relationship between gallons of gas used and miles driven proportional?</p><p>Write an equation, in terms of m, representing the relationship between the number of gallons of gas purchased and the miles driven.</p><p>What is the constant of proportionality?</p><p>Graph the relationship below.</p><p>6. Complete the table below Fraction Decimal Percent</p><p>0.02 Review for Test</p><p>7. Over the break, your uncle and aunt ask you to help them cement the foundation of their newly purchased land and give you a top-view blueprint of the area and proposed layout. A small legend on the corner states that 4 inches of the length corresponds to an actual length of 52 feet.</p><p> a. What is the scale?</p><p> b. What is the scale factor?</p><p> c. If the dimensions of the foundation on the blueprint are 11 inches by 13 inches, what are the actual dimensions?</p><p> d. What is the actual area of the foundation?</p><p> e. Your uncle is able to work faster than you! He uses 3 bags for every 2 bags you use. Is the relationship proportional? Explain your reasoning using a graph on a coordinate plane.</p><p> f. What does (0, 0) represent in terms of the situation being described by the graph created in part (e)?</p><p> g. What does (1, r) represent in terms of the situation being described by the graph created in part (e)?</p>