Of the 15-year-olds at a karate school, 7 have black belts and 10 have brown belts. Among the 16-year-olds, 10 have black belts and 19 have brown belts. Which age group has a lower ratio of black belts to brown belts?

The area of a rectangle is 65 ft2, and the length of the rectangle is 3 ft less than double the width. Find the dimensions of the rectangle.

Select the sets that are not functions. A = { (1, 2), (2, 3), (3, 4), (4, 5) } B = { (1, 2), (2, 1), (3, 0), (4, - 1) } C = [ (-1, 3), (0, 3), (1, 3), (2, 3) } D = { (1, 1), (1, 2), (1, 3), (1, 4); E = { (6,2), (7,3), (6,-1), (5,4) }

1/4 k - 3 = 3/4 k + 5 solution of k =

Given 11 players, five players have a weight lighter than 163 pounds. True False

My aunt gets 11.50 for one hour. How much would she get in 45 minutes?

How many water glasses are in a 17oz bottle?

The wheels of a car lock up and it skids 15 m. If it goes 3 times the speed it was going on the same road and under the same conditions, how far will it skid if it's wheels lock up again? A. 26 m b. 45 m c. 90 m d. none of the above

An observer in a lighthouse 350 ft above sea level observes two ships directly offshore. The angle to the shore are 4 and 6.5 degrees.

What number must you add to complete square? x2+10x=8 answers A. 10 B. 15 C. 25 D. 5

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