If Ol Mcdonald wants to fence in the square pasture and barbed fence costs $1.15/ft , then determine the cost to fence in the pasture . PLEASE HELP !

Liam's parents are driving three times as fast as liam is biking, but they left later than he did. if his parents caught up with him two hours after he left, how much later than liam did they leave?

Find the area of the unshaded square

Given the sequence 7, 14, 28, 56, which expression shown would give the tenth term? a. 7^10 b. 7·2^10 c. 7·2^9