Answer:
Step-by-step explanation:
Let 
y=2x-10
Switch x and y,
x=2y-10
x+10=2y
(x/2)+5=y
So 
Answer:
B- Line Q
Step-by-step explanation:
Line Q is practically in the middle of the dots. It is called a trend line btw. :)
Answer: ?
Step-by-step explanation:
Answer: Choice D) Commutative Property of Multiplication
-------------------------------------
The commutative property of multiplication states that a*b = b*a. In other words, it doesn't matter how you multiply two numbers. The order isn't important.
For example, 2*3 = 3*2 = 6
So that's why we're able to do x*y = y*x
Furthermore,
x*y*z = y*x*z
Only the x and y swap places
We will use the equation

to solve this one. We have distance and time, so we'll rearrange this to:

So she runs 7.5 miles per hour.