An urn contains 7 red marbles and 12 blue marbles. if we randomly take 5 marbles without replacement, what is the probability that at least one will be blue?

Arectangular exercise mat has a perimeter of 36 feet the length of the mat is twich the width writeand solve an equation to determine the length in feet. of the mat then find the area in square feet of the mart

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?