Answer:
54
Step-by-step explanation:
First, take the number 200. we can remove 20, because they didn't go to the exams.
Secondly, we have to find 70% of 180. This can be done by doing some math.
Let's do this by using fractions. 70/100 * 180 = 126.
Third, we find the other 30% by doing the same equation.
30/100 * 180 = 54
(This is the part where you thank me, and give your opinions, and maybe "brainliest" answer. :D)
you need to find how much the output changes for each unit change in the input. (ie from an input change from 5 to 6 the output changes by three units and an input change of 3 (2 - 5 ) units the output changes by 9 units). This will give you the gradient of the equation. then you have to find out the y intercept by finding what the output is when the input is 0. Do this by multiplying the input by the gradient and then subtracting it from that inputs output. This will give you the answer A) 3x
(Sorry, its a bit wordy :) )
9/150-0.06
12. hope that helped
