Rob had $210. He spent 4/7 of it. How much money did he have left?

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?

When 142 is added to a number the result is 64 more times the number my options are 35 37 39 41

Someone me what is the area of this figure? 18m 18m 8m 16m