Evaluate expression when r = 9 3 (5r-3) - 2 (6r-7)

Bobby's Christmas list had 3 more than twice as many items on it than Johnny's list. Jhonny asked for 8 fewer items than bobby. How many items were on Johnny's (x) and Bobby's (y) Christmas lists

Explain how to simplify this expression: (7a + 9) + (4a - 7).

If y = 2x - 8 and 4y = kx - 32 are equivalent linear equations, what is the value of k?

A man invests $7000 in an account that pays 6.5% interest per year, compounded semi-annually. Find the amo t after 5 years. How long will it take for the investment to quadruple?

Slope = 9; intercept = 2

Cassidy's goal is to raise more than $75 for charity. She has already raised $6. Now she is selling cupcakes for $3 each to reach her goal. Let c represent the number of cupcakes Cassidy needs to sell to reach her goal.

5 out of 8 cameras sold in a store are digital they sold 72 cameras how many digital discthey sell

Simplify completely 25 w to the sixth power over 10 w to the third power divided by 30 w squared over 5 w.

Multiply the polynomials. (2x+6x+6) (3x-2)

Fraction as a decimal round to three decimal place 4/10