PLEASE SOMEONE HELP ME :( PLEASE IM BEGGING

Omar is going on a road trip! the car rental company offers him two types of cars. each car has a fixed price, but he also needs to consider the cost of fuel. the first car costs $90 to rent, and because of its fuel consumption rate, there's an additional cost of s0.50 per kilometer driven.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.