There was 20 coins and 4 bags and you have to put all the coins to make it even in all 4 bags how many coins go in each bag?

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.

Which exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$