Tanisha rose her bike 19.625 is about 20, the quotient is about twenty divided by 2.5 or 8 next divide 19.625 by 2.5

Lorenzo ate 2/5 of his bag of almonds. his 4 friends ate equal shares of the remaining bag of almonds?

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

What is the value of p in the equation y^ = -4x?