For this problem, 0.25 in = 50 m. So
11 in = (11 in) • (50/0.25 m/in) = 2200 m
Alternatively, if 0.25 in = 50 m, that means 1 in = 200 m. So 11 in = 11 (200 m) = 2200 m.
Plug the x value into the x value for your questions.
8.) -57
9.) -2
The variables are: x, y
The constant is: 4
The coefficients are: 5, 3
The exponent is: y^2