2long craft sticks and 2 short craft stick make what 2 quadrilaterals

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

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?