Mrs.bull spilled coffee on her computer during the first week of school! the total cost after tax to repair its is represented by 0.08(50h)+50h,where h represents the number of hours it takes to repair her computer. what part of the expression represents the amount of tax mrs.bull has to pay? explain

y=(2/7)x+(7/3)

Step-by-step explanation:

y=-7/2(x)+9

y=mx+c

Therefore, slope of line y is -7/2

Because line y perpendicular to the required line

Therefore, slope of the required line is 2/7

x+y=10 (1)

3x-4y = -12 (2)

(1) x 4:

4x+4y =40 (3)

(3) + (2)

4x+4y+3x-4y=28

x=4

by substituting x=4 into (1), we have

y=10-4=6

Therefore, the point that the line intersects is (4, 6)

let y=(2/7)x+c be the required equation

(4, 6):

6=(2/7)4+c

c=21/4

therefore, the required equation is y=(2/7)x+(7/3).