Basic College Mathematics (10th Edition)

Adrienne worked 46.5 hours this week. For first 40 Hrs. Dollar 14.24 per hour. After 40 Hrs. 1.5$\times$14.24 = Dollar 21.36 per hour. Total earnings = Earnings of first 40 hrs + earning of 6.5 hrs after 40 hrs. = 14.24 $\times$ 40 + 21.36 $\times$ 6.5 = 569.6+138.84 = 708.44 If we round it to nearest dollar. 708.44 will be 708