Hello may someone help me?

The difference of 2 numbers is 21 and the quotient of the equation is 4 then what are the two numbers?

How do i make someone brainliest? (if you answer me, i might be able to make you brainliest! )

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year