What is the numerical expression of the sum of 21 and 4 doubled

Brandon bought a gallon of paint that covers 160 square feet. He wants to paint a wall that is 10 ft. high and 12 ft. wide. Explain whether he will need more than one gallon of paint. A. No, he won't need more paint.

Does 1.84=1 21/25?

What is the value of - |3^-3|?

How do you solve 3 (a + 2 b) + 2 (3a + b)

8. An animal shelter has 35 cats, 10 dogs, and 15 rabbits. The shelter publishes the ratio of cats to dogs in its latest newsletter. What is the ratio of cats to dogs?

Martha always tries to exercise at least 30 minutes a day. Write an inequality to represent the number of minutes Martha exercises each day.

A swimming pool has perimeter of 72 feet. The short sides measure 16 feet. What is the length of the longer sides of the pool

At the beginning of an environmental study, a forest covered an area of 1500km2. since then, this area has decreased by 7.1% each year. let t be the number of years since the start of the study. let y be the area that the forest covers in km2.

What are the transformations of f (x) = -7 (x-9) ^2+3

A farmer water 3/8 of a field what percentage is equivalent to the fraction of the field the farmer wanted?