David took 10 1/2 hours over 3 days to build airplane. he spent 3 1/4 hrs the firsr day and 4 2/3 hours the second day. how many hours did he spend the third day to finish?

Each night, Quentin reads 9 pages out of a book that has 289 total pages. What percent of the book does he read each night?

The volume of a cone with a height of 6 cm is 8pi cubic cm. Which expression can be used to find r, the radius of the cone?

Shelby wants to buy three ice cream cones and some candy for her friends. She wants to spend exactly $16.50. If an ice cream cone costs $3.25 each and candies cost $1.

How do you convert 21.76 into a fraction

If f (x) = 1/2x - 10, then f^-1 (x) =

How many revolutions will a car wheel of 30in make as the car travels 1 mile? (1 mile = 5280ft) ?

74 divided by 2 but long division

Brianna was making a recipe that said the ingredients were for 6 people, but she needed to make it for 8 people. The recipe called for 2 2/3 cups of milk and 1/4 cup of oil. How many cups of these liquid ingredients did she need for 8 people?

Which ratio is not equivalent to 48/64? A. 2/3 B. 6.8 C. 12/16 D. 45/60

A scale drawing uses the scale 3 in = 20ft find the missing measure 57 in = ft