marcia works 9 more hours than ivana. Marcia and ivana work at a haunted house. each girl earns 7.50 per hour. The total earned by marcia and ivana eacg week is 217.50. how many hours did marcia work?

A number k minus 8 as an algebraic expression

Find two numbers whose sum is 92, and the first number is 4 more than 7 times the second number.

I think the answer is addition 2x + 5 = 10 What is the first operation used in solving this equation? A) addition B) division C) multiplication D) subtraction

3/5meters=centimeters

Which expression is equivalent to 66 ⋅ 6-9?

Sid lives 3 miles north and 8 miles west of school. What is the direct distance from Sid's house to school? a. 11 miles b. 5 miles c. 36.5 miles d. 8.5 miles

6 (x-5) = 5 (x+5) 4y + 2 (-3 + 2y) = 1-y Solve the equations 4 (a-6) = 8a - (4a-24) 4 (2x-8) = 8 (x-8) 2 (3x-3) = - 6x-6 do these have no solution or are they an identity

Multiply and Simplify (-4) (x^8 - x - 4)

Michael and Angela each have a collection of candy. Michael tells Angela, "If you give me one piece of candy, then we'll have the same number." Angela replies, "But if you give me one piece, then I'll have twice as many as you.

To prepare for competitions your swimming coach required you to swim 8 lengths in the pool you swam 10 lenghts what percent of the required practice did you swim