For the geometric sequence with a1 = 2 and r = 2, find a5

Carl wants to buy a television that cost $500 including taxes. to pay for television he will use a payment plan that requires him to make a down payment of $125 and then pay $70.50 each month for six months what is the percent increase from the original cast of the television to the cost of the television using a payment plan.

In the diagram, the ratio of ab to ae is (1/2) . what is the ratio of the length of to the length of ?

What is a possible solutions of the x> 3?