You are selling tomatoes for $4 per pound. You have already earned $16 today. How many additional pounds of tomatoes do you need to sell to eam a total of $60?
4
19
15
11
please answer quickly

Rena used the steps below to evaluate the expression , when . step 1: substitute into the expression. step 2: simplify the parentheses. step 3: evaluate the power to a power. step 4: use reciprocals and find the value. in which step did rena make the first error?