T Write the ratios in simplest form.
10. 18
11. 21 to 14
12. 15:25
Write = if the ratios form a proportion; if they do not form a proportion,
write +
13. 12
14. 20:24 I 24:30
15. 16 to 20 I 28 to 35

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Find the solution set of this inequality. enter your answer in interval notation using grouping symbols. |8x-4| ≤ 12

Find the missing factor. write your answer inexponential form.9^2=9^4×