A box is made from thin metal sheet, with vertical sides and no top. The base is a rectangle whose length is twice the breadth. if the box can hold 288cm³, what are the dimensions if the minimum amount of material is to be used? ( ignore any overlaps)

The number of revolutions of two pulleys is inversely proportional to their diameters. if a 24-inch diameter pulley making 400 revolutions per minute is belted to an 8-inch diameter pulley, find the number of revolutions per minute of the smaller pulley.

How do i solve uniform motion problems?

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.