You are borrowing $4,285 to purchase a computer using a 36 month installment plan. determine the annual percentage rate (apr) and the monthly payment given that the interest charge is $513.26. round your answer to the nearest whole percent and to the nearest cent.

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2

The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z