Simplify the expression 21b4 - 3b I need an answer right away

What fraction is equal to 0.272727 ...

A boy swims 500 yards in 5 minutes and 15 seconds what is his swimming speed in yards per minute to the nearest whole yard

How do i get a fraction and as a decimal for 72%full

Hart family drove 10 hours to their vacation spot they drove 48 miles each hour how many miles did they drive

Factor the expression over the complex numbers. X^2+50

Ashley read 12 books in 16 months. What was her rate of reading in books per month?

Rule: Divide by 2, then add 6. 56, 100, 34, 23 A. 23, 34, 56, 100 B. 23, 56, 34, 100 C. 100, 34, 56, 23 D. 100, 56, 34, 23

Sara was on a cliff 25 feet above sea level. she jumped into the sea and descended a total of 37 feet. how many feet below sea level did she travel? justify your reasoning

The 8th grade student council sold 180 tickets to its pancake breakfast fundraiser. 6 ounces of pancake mix makes enough pancake for 5 people. How many ounces of pancake mix are needed to make pancakes for 180 people?

Craig has a yellow jug a red jug and a blue jug the blue jug holds 2/3 of a gallon