Defg is a rectangle. de = 40 and gf= x+5. find the value of x.

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2