What is the effect on the graph of the function f(x)=1/x is replaced with 1/3f(x-2)

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

Which equation represents a line that passes through the point (9, -4) and has a slope of 3/5?

You had $235 in your savings account nine weeks ago. you withdrew the same amount each week for 8 straight weeks. your balence was then $75. solve the equation 235 - 8m=75 to find how much money m you withdrew from your account each week. 2 points