The cylinder below has r = 10 inches and a volume of 6283 cubic inches to
the nearest cubic inch. find the height of the cylinder to the nearest inch.

In the diagram below what is the approximate length of the minor arc ab

Gretchen is setting up for a banquet. she has 300 chairs and needs to distribute them evenly among t tables. how many chairs should she put at each table? write your answer as an expression.

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.