Answer:
The slope of y=x is 1
Step-by-step explanation:
Slope = 1
4/5 recommend, so about 4/5(120) = 96 doctors recommend the brand.
Answer:
D
Step-by-step explanation:
It's D on Edge, hope this helps
Answer:
8.06
Step-by-step explanation:
Use the Pythagorean theorem:

The hypotenuse is always the slanted side, or c (x in this picture), but the other numbers can be interchanged. Doesn't matter.
Plug the numbers 4 and 7 into the formula.

Now evaluate them to get 
16+49=65
To get c, take the square root of 65

Answer:
60%
Step-by-step explanation:
It went up 12 dollars, and you need to find how much 12 is of 20 as a percent. You do 12/20 times 5/5 and get 60/100, so 60% markup