Chris puts two layers of cake next to each other. the layers each measure 20 cm by 30 cm. what is the perimeter?

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

Oliver read for 450 minutes this month his goal was to read for 10% more minutes next month if all of her medicine go how many minutes will you read all during the next two months