consider the following system of equations:2x+3y=45,x+y=10 what is the x value of the solution for this system?

Given f(x) = 10x + 4 and g(x) = 3x - 8, what is f(x) + g(x) ? - 7x - 4 - 13x + 4 - 7x + 4 - 13x - 4

The step function g(x) is defined as shown.what is the range of g(x)? ***answer choices in picture.

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined