At noon, a tank contained 8 in. of water. After several hours, it contained 2 in. of water. What is the percent decrease of water in the tank?
The percent decrease of water in the tank is %

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

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 area of the triangle shown 3 by 6