Correct answer only ! the explicit rule for a sequence is given.

What is the measure of ac? 5 units 13 units 26 units 39 units

What is the square root of 45? (step by step working plz)

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?