What is the value of the expression below?
(31-9) =(-2.5)
a - 2.5
b-23
c 2.3
d
2.5

Solve: 3x+y=6 4x-2y=18 show all work !

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25

In the figure below, m∠r is 60°, and m∠t is 120°. what is m∠q? a. 60° b. 30° c. 120° d. 54