suppose you have 7 tennis balls and you randomly pick some number of them. what is the probability you draw out exactly 4 of them?

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

1) in triangle the, what is the measure of angle t (in degrees)? 2) in triangle bat, the measure of angle b is 66∘, and the measure of angle t is 77∘.what is the measure of the exterior angle at a (in degrees)?

Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine, t, the number lf tokens jason bought