How many grains of sand are there in 7200kg of sand?

Each second for 4 seconds, an elevator descends 10 feet. Find the total change in elevation.

An electrican charges 40$ to come to your house. she also charges $55 for each hour that she works. the electrician charges you a total of $190. how many hours does the electrician work at your house? use h for the number of hours

Mr. Kaplan is ordering 30 flash drives for the students in his class if each one cost $11.95 how much will it pay justify your answer using the distributive property

when I add or subtract fractions first I must convert the denominators so they are common. Then I can add or subtract the?

Find the volume of a sphere with diameter 3.9 yd

Ty is at Home Depot and must decide whether to buy paint in 10 individual quart cans or to buy it in both gallon and quart cans. Here are the details: 4 quarts = 1 gallon 1 quart costs $6.99 1 gallon costs $20.

27 over 75 as a decimal in the thousandths place

a diagram of a swimming poolis below. the width of the pool is 25m, find the length of the actual pool

John buys a $5,000 savings bond with a fixed interest rate of 3% with 10 years to maturity. He also buys two $5,000 zero coupon bonds for $4,300 over this time period.

Find the product tell which strategy (4x10) x10