Is this the correct answer?

Ben bowled 124 and 188 in his first two games. what must he bowl in his third game to have an average of at least 160?

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.

Brad earns $12.75/hr and works 40 hours a week. what is his gross annual income?