What is a good way to remember how many ounces in a cup,

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

Find the area of the regular hexagon if a side is 20 cm.

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)