Find the sum of the first 20 terms of the arithmetic sequence 4, 10, 16, 22 ...

Area = 48 mi? The area of the polygon is 48 mi?. What is the formula that shows the length of side a?

What decimal is also related to the fraction?

Write an expression that represents "the sum of n and five".

Karl's mother buys 60 party favors to give out as gifts during Karl's birthday party. Which number of guests will not let her divide the party favors evenly among the guests?

Sam bought a shirt for $17. The sales tax is 6%. He gave the sales clerk $20, which is all he had with him. How much change should he get back?

Simplify the expression completely. (33/2 - 31/2) - 2

Write fraction as a decimal 7/11

Jane paid a total of $79 for a pair of shoes and 2 hats. The price of each hat was $12. Use rounding toestimate how much Jane paid for the pair of shoes.

Two redwood trees are the same height. A third tree's height is x feet. The first tree is 50 feet more than three times the height of the third tree. The second tree is 100 feet taller than twice the height of the third tree.

Express 400 miles in 6 hours as a ratio