Mary can make a costume twice as fast as Sam can can. If they both work together, they can make it in 6 hours. How long will it take Mary to make the costume if she works alone?

Nick and Nora are married and have three children in college. They have an adjusted gross income of $47,400.

Find the length of an arc of an 8 inch radius circle if the arc measures 45°

216 - (-8/3) + (-4 7/9) = ?

What is 384,000 in scientific notation form?

8 Alex, Bella and Carl visit the cinema every 18, 36 and 48 days respectively. Given that they watch a movie together today, how many days later would they watch a movie together again?

Which pair of ratios can from a true proportion A. 7/4,21/12 B. 6/3, 5/6 C. 7/10, 6/7 D. 3/5, 7/12

Brett fills up his car at a gas station selling gas for $2.10 per gallon. It takes 6 1/2 gallons of gas to fill up the car. How much does Brett spend on gas?

Find the slope (2,5) and (6,2)

Which expression is equivalent to pq

Do this multiplication: 75 x 2