What is 3 times the sum of a and b?

This needs to be written as an algebraic expression!

Find all the zeros x^4+3x^2-54=0

I forgot how to do surface area

If Dr. Suzuki rides his bike to his office, he averages 12 miles per hour. If he drives his car, he averages 48 miles per hour. His time driving is 1/4 hour less than his time bicycling. How far is his office?

Machine 1 can complete a task in x hours while an upgraded machine (machine 2) needs 9 fewer hours. The plant mana knows the two machines will take at least 6 hours, as represented by the inequality Which answer choice includes all solutions to the

A rectangle swimming pool is 9 meters wide with a surface area of 3 square meters. what is the length of the pool?

Evaluate F (x) - x2+1 for x=3

What is 39 divided by 9

A gardener is mowing a 20 yd-by-40 yd rectangular pasture using a diagonal pattern. He mows from one of the pasture to the corner diagonally opposite. What is the length of this path with the mower? Give your answer in simplified form.

A pond 85 feet across; 1 inch = 4 feet

Identify which type of sampling is used: random, systematic, convenience, stratified, or cluster. Upper A magazine asks its readers to call in their opinion regarding the quality of the articles.