What is the place value for 3 in 318,472,008

Aboat's value over time is given as the function f(x) and graphed below. use a(x) = 400(b)x + 0 as the parent function. which graph shows the boat's value increasing at a rate of 25% per year?

For which pair of functions is (gof)(a)=|a|-2?

Solve the system of equations y= 3/2 - 1, -x+ y =-3