In a baseball game, pitcher Samuels throws 20 strikes out of 30 pitches. In the next inning, he throws 42 out of 65 pitches. About what percent of his pitches were strikes in the two innings?

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?