We need to multiply

We need to use the distributive property to expand this:

Let's multiply it out using this property, to get our answer:
Answer:
70x + 100
Step-by-step explanation:
Trust me on this one
W = words per minute = 80
t = time in minutes = 30
The total number of words per 30 minutes is w*t = 80*30 = 2400 words
We know the yint, so lets find the slope. (0,-12) and (8,-2) -2--12/8-0 or 10/8 or 1.25
So, the slope is 1.25
The answer is y=1.25x-12
12 4/5 can be changed as 64/5 so there are 64 1/5ths