Twice the difference of a number and 2 is 8

What is 555 rounded nearest hundred?

Serena parachuted from a plane and dropped 15,000 ft, putting her 5000 ft above sea level. How high above sea level was Serena when she jumped from the plane? 10,000 ft 5000 ft 15,000 ft 20,000 ft

A washer and dryer cost a total of $924. The cost of the washer is two times the cost of the dryer. Find the cost of each item.

1/10 + x/100 = 6/x One-tenth plus x over 100 equals 6 over x what is the value of x

Why do square roots have to be represented as fractional exponents what would happen two numbers if they weren't try to construct a logical argument to defend your answer

What is the sum of the complex number 2+3i and 4+8i, where i=√-1?

Find the missing angle

At Brian's Bookstore, 0.3 of the shelves hold mysteries, 25% of the shelves hold travel books, and 7/20 of the shelves hold children's books. Which type of book covers the most shelf space in the store? Explain how you arrived at your answer.

What in math what does it mean when I'd a sample process is in control or not?

What is five and one fifths minus one and three fourths