Calvin is 150 cm tall, which is 75% of darryl's height. how many centimeters tall is darryl?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Collin did the work to see if 10 is a solution to the equation r/4=2.4

For the chance to be team captain, the numbers 1-30 are put in a hat and you get two chances to pick a number, without replacement. which formula correctly shows how to find the probability that you choose the number 1 and then 2?