Devaughn is 9 years younger than sydney. The sum of their ages is 45. What is sydneys age?

Did I do this right? 3.2x + 5.3x = - 25.5 X equals - 3 right?

The volume of the cone is 294.38 cm the radius of the base is 7.5 cm which one of the following could be the height of the cone? A. 4cm B. 5cm C. 6cm D. 7cm

A restaurant uses 4.375 pounds of cheese every 8 and 3/4 pizzas. At this re how many pounds of cheese are used per pizza?

What is the square root of 2131?

A company pays its employees a base salary of $1000 every other week. plus $30 for each sale. How many sales did the employee have if the paycheck is $1540

What is the percent of 3/14

A 7th grader student chooses a random sample of 50 out of 400 students. He finds that 7 students have traveled outside the United States. The student claims that over 50 of the 400 students have likely traveled outside the United States.

If the car spends 2.5 hours going 35 miles per hour on the trip, how long does it spend going 35 miles per hours

Mr. Obama would like his daughter to attend Harvard in 6 years when she finishes high school. Mr. Obama would like to invest enough money in a certificate of deposit (CD) now to pay for his daughter's college expenses.

Geode shaped approximately like a cylinder. It has a height of 26 feet and a diametet of 5.6 feet. What is the volume of the geode, rounded to the nearest tenth?