If a = -4 and b = 3, which of the following is the value of the expression 2ab 2 + a 2?  

A furniture manufacturing company is hosting a picnic for its employees. Each employee is allowed to bring one guest. If 600 employees attend, and 3/5 of them plan to bring a guest, how many guests are expected at the picnic?

Domingo hoped to save $3800 for college. He lived with his parents for a year and was able to save $350 each month. By the end of the year, how much MORE had Domingo saved than he had hoped to save?

On Saturday mornings, Rosa exercises by riding her bicycle along a route from her home and back again. Her ride normally takes 1 hour and 40 minutes to complete. If Rosa leaves home at 10:30 A.M. and rides for the usual amount of time, when will she arrive back home?

Javier wanted to make a profit of $80 for selling the 4 vases he had made. He had spent $12 for materials. Since he planned to charge the same price for each vase, he used the following equation to determine x, the price he would charge: 4x - 12 = 80 How much did Javier plan to charge for each vase?