Ken paid $12 for two magazines. the cost of each magazine was a multiple of $3 what are the possible prices of the magazine?

Acollege is planning to construct a rectangular parking lot on land bordered on one side by a highway. the plan is to use 680 feet of fencing to fence off the other three sides. what dimensions should the lot have if the enclosed area is to be a maximum?

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

6x + 3y = -6 2x + y = -2 a. x = 0, y = -2 b. infinite solutions c. x = -1, y = 0 d. no solution