The intersect of the 2 lines is (3,0) and the y coordinate is 0
[Find the changes in the salary]
Increase = 28100 - 25300 = 2800
[the change, divided by the original amount. x100 to give the percentage]
percentage increase = 2800/25300 x 100 = 11.07%
15 inches.
a^2 + b^2 = c^2 so c^2 - a^2 = b^2
(17)^2 - (8)^2 = b^2
289 - 64 = b^2
225 = b^2 then you take the square root on both sides
15 = b