Step-by-step explanation:

Answer:
f(x)=x
Step-by-step explanation:
that's keeping it simple... ;-)
The slope for a line that's perpenficular is the resepical of each other
Ex. Slope: -2 Perpendicular Slope to 1st Line: \frac{1}{2}
so the perpendicular slope to 7/8 is -8/7
for y-intersecpt i would go on desmos(graping calculator website) and type in the equation y=-8/7x+b
Use the slider, and it you give you... You can't find the whole equation (y=mx+b). Because as long as the line has the slope of -8/7 it's perpenicular.
Did the problem tell you anything about a point that this new line goes through? Or no?
Answer:
117
Step-by-step explanation:
The correct option is A.
The cost of the pizza is $8 and the total amount spent is $10. To find the cost of the salad, all you have to do is to subtract the cost of the pizza from the total amount spent, the remain amount will be the cost of the salad. That is,
Let S stands for salad,
8 + S = 10
S = 10 - 8 = 2
Thus, S = 2.
This means that, the salad costs $2.00<span />