Which expression is equivalent to 36:3+3

A scientist wants a 45 milliliter saline solution with a concentration of 11%. She has concentrations of 7% and 19%. How much of each solution must she use to get the desired concentration?

7/2x-1/2y=9/2 3x-y=5 What is the solution of the system of equations?

Due to construction, traffic is getting detoured from Main Street by turning slightly right onto Oak Avenue and continuing straight for 4 mi.

6 times 3 plus 23 times 7 over 33-3

What is the unit rate of 325 meters in 28 seconds

Rectangle abcd is similar to rectangle pqrs. given ab=14 cm, BC=8cm and pq=21cm, calculate the length of QR

9s in 9,905,482 place C

Find the quotient and remainder for 52 divide by 8

4. Find the zeros for 0 = x2 + 6x + 9. a. X = 3 b. x = - 3 C. X = 3 and x = - 3 d. x = 1 and x = 9

The perimeter of a rectangle is 144 ft. The ratio of the width to the length is 3:5. Find the dimensions (length and width) of the rectangle.