One plane at 520 feet is ascending at a rate of 40 feet per minute. While another plane at 3800 feet is descending at a rate of 120 feet per minute. How long will it take the two planes to be at the same altitude?

Lynn was shopping and found a purse that was marked with a discount of 1/3 off. If the original cost of the purse was $80 how much will Lynn pay? Show complete work!

6 (x - 3) = 3x + 9 Idk it

The perimeter of a rectangle is 60 the lenght is 3 inches more then the width what is the lenght and the width?

I am a number between 60 and 100. my ones digt is two less then my ten's digit. I am a prime Number Between

find the smallest angle of triangle s in PQR whose sides are given as follows. Give your answers to 3 significant figures ... when p=5.6cm, q = 4.6cm, r=6.5cm

What is the volume of a sphere?

What percent of 78 = 39?

The interior paint color, Melon Madness, is 30% yellow. Raul used 72 oz. of yellow to mix the last batch. How many oz. of Melon Madness did he make in the last batch?

What is 3/8 plus 4/5 with the lcm for the denominators?

A community is building a square garden with a walkway around the perimeter with the design shown at the right. Find the side length of the inner square that would make the area of the inner square equal to 75% of the total area of the garden.