Five people can mow a lawn in 12 hours. How many more people are needed to mow the lawn in just 3 hours, assuming each person mows at the same rate?

If C4=15 and C7=14, what is the result of the logical expression C4>C7 true or false

An article reports that 1 in 500 people carry the defective gene that causes inherited colon cancer. In a sample of 2000 individuals, what is the approximate distribution of the number who carry this gene

If the temperature outside is 25 Celsius what clothing would be the most appropriate

Find the product of 1/7 of 14

after typing 1/4 of a term paper on Friday, Richard completed 2/3 of the remainder on Saturday. If he wanted to finish the paper that weekend, what part was left to be typed on Sunday?

Given: ∠KJL and ∠KML intercept arc KL. Prove: m∠KJL = m∠KML

Express the area of each figure as a monomial. Solve 7x^4 if the formula is s^2.

A chess board is an 8 by 8 grid of squares. If you randomly choose 3 squares on the board, what is the probability that: a) they lie on the same line, excluding diagonal lines? b) they lie on the same line. including diagonal lines?

A marble bag contained 2 red marbles, 3 blue marbles, and 5 yellow marbles. Marco drew a blue marble and did not replace it. What is the probability of drawing a blue marble next?

An 85-foot rope from the top of a tree house to the ground forms a 45 degree angle of elevation from the ground. How high is the top of the tree house?