Translate the sentence into an equation. the difference of a number divided by 3 and 8 equals 5. use the variable b for the unknown number.

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.

Multiply. write your answer in simplest form. 3/8 x 5/7

Can someone me do math because i am having a breakdown rn because i don’t get it