C. 4
if we use the formula to find a slope m = y2-y1
x2-x1
So y2 =8, y1=12, x2=2, x1=3 so it should look like this 8-12= -4 which can be simplified so
2-3= -1
It should be equal 4
The answer is 6-------------------------
Bottom Left
I'm not sure how to explain it
Answer is C bc it is rotating around the origin
Since $45 is 60% of the total cost, you can make an equation or a proportion to solve it....
45 = .6x for example, now divide by .6 and you'll get 75.
So 45 is 60% of 75 and the total cost then is $75