Pls help me I really need help urgent please. Detailed explanation answer to 9 and 10

True or false: the graph of y=f(bx) is a horizontal compression of the graph y=f(x) if b< 1

W-16=-12 solve each one step equation plz

Emily convinced her mom to buy a giant box of her favorite cereal. her mom doesn't think the box will fit on their shelf. the volume of the box is 1000 cm^3 . the base of the box is 25 cm by 10 cm