Please help! Julio is paid 1.2 times his normal hourly rate for each hour he works over 28 hours in a week. Last week he worked 45 hours and earned $643.72. Enter and solve an equation to find Julio's normal hourly rate, r. Complete the explanation how you know that your answer is reasonable. The earnings equation is $643.72 = __? Julio's hourly rate is $ ___? per hour. This is reasonable because working 45 hours at a rate of $13 per hour is 45 · 13 = 45(10 + 3) = 450 + 135 = ___? , and $ ___? is close to $643.72.