There are 52 weeks in a year. if Mr. Dan runs 9 miles every week, how many miles will he run in a year

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?

Which equation is equivalent to the given expression? -(1/2y+1/4) a. -1/4(1+2y) b. 1/4(2y-1) c. -2(1/4y-1/8) d. 2(1/8-1/4y)