What's 2+2+2+2? First question oop.

Use the formula to evaluate the series 2 - 10 + 50 - 250 + ... a6 sn = a1 (1-r^n) / 1-r

Which expression is equal to (7 * 2) * 2? A) (7 + 2) * 2 B) (2 * 2) + 7 C) 7 * (2 * 2) D) (2 * 7) + (2 * 2)

Maria Cardenas had a policy with a $500 deductible which paid 80% of her covered charges less deductible. She had medical expenses of $12,500. Calculate: a. the company's payment $ b. the 20% copayment $ c. Mary's total cost

A stack of 12 pennies is 18.24 millimeters high how thick is each penny how thick would a stack of 20 pennies be?

Which is a complete list of factors of each term in the expression 15+20x? A. 15:1,3,5,15 20x:1,2,4,5,10,20, x B. 15:1,3,5,15 20x:1,2,4,5,10,20 C. 15:3,5 20x:4,5, x d. 15:1,3,5, 20x:1,2,4,4,10, x

James is 19 years old. He is three years older than twice his sister's age. How old is James' sister?

Is 145 oz equal to 9 lbs

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 11 feet cubed. A sphere with height h and radius r. A cylinder with height h and radius r. Which equation gives the volume of the sphere?

Sonia has 28 stickers on 4 pages oh her notebook. She writes that 28 is7 times as many as 4. which other comparison sentence can she write in her notebook to show the comparison

Which statement is rewritten as a conditional statement for the sentence below? All dogs have tails. A.) if an animal is a dog, then it has a tail. B.) if an animal is not a dog, then it has a tail. C.) if an animal has a tail, then it is a dog. D.