Z(x) is a function as defined below: z(x) = x + 1

If you input a 3 into z(x), what do you get for the output?

Enter your answer in the space provided below. (Example 42)

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?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )