Once numbered 20-30 million

A bag contains the following marbles: 12 black marbles, 8 blue marbles, 16 brown marbles, and 14 green marbles. What is the ratio of black marbles to blue marbles? Express your ratio as a fraction or with a colon.

What is the quotient of 20 divided by 3/5

What is a better buy 5 minutes of a game for $10 or 7 minutes for $12

A newlywed couple is trying to choose one of two neighborhood supermarkets for their grocery shopping.

A plane is heading due south at 200 mph. The wind is blowing S30°W at 25 mph. Find the ground speed of the plane and resulting direction of the plane.

Which expression can be used find 40% of 130? a. 26 x 5 b. 26 x 4 c. 26 x 3 d. 26 x 2

Order √3, 2π, and 1.5 from least to greatest.

The arithmetic mean of the monthly salary of two employees is $3210. One employee earns $3470 per month. What is the monthly salary of the other employee?

Write the expression in exponential form. log 3^9 = 2

Ariana has $1.40 worth of nickels and dimes. She had twic as many nickels as dimes. Determine the number of nickels and the number of dimes that Ariana has.