Answer: 53.84%
Step-by-step explanation:
Given
The average cost of hiring is £520
The new increased cost of hiring is £800
Percentage increase is

Putting values

Assuming from the picture that you only need to solve one of the equations to get the answer
4k + 5 = 115
-5 from both sides
4k = 110
Divide 110 by 4 = 27.5
K = 27.5
Answer:
The Expression h(-7) represents the output of h corresponding to the input of -7
Step-by-step explanation:
Yo get a perpendicular line you have to have the reciprocal of the slope, in this case the slope is -2/5 so the reciprocal is 5/2. You then plug the coordinates in for y and x with the slope you found to find b (or the y-intercept). The equation will be 2=-6(5/2)+b. Solve and b=17. The final equation is y=(5/2)x+17