9 students can make a poster in 10 hours. How many students should join them so that they altogether can make this poster in 6 hours?

What is 31 in tens and ones

How many miles are there in 10 kilometers? hint: there are 1.61 kilometers in a mile?

Consider circle T with radius 24 in. and θ = 5pi/6 radians. What is the length of minor arc SV? 20π in. 28π in. 40π in. 63π in.

Two less than a number

Y divided by six has too equal seven

Barry's pet turtle, Turtlelini, escaped from his backyard. Barry found Turtlelini by the creek and wanted to determine how far Turtlelini had walked. On the map, Barry's house is 0.6 inch from the creek. If the scale on the map shows that 1.

A hose can fill a swimming pool in 12 hours. Another hose needs 6 more hours to fill the pool than the two hoses combined. How long would it take the second hose to fill the pool?

Simplify this. 5^5 / 5^8

If a square has a perimeter of 40 yards, what is the length of one side of the square?

At Ron's Roller Rink, the number of costumers has been decreasing at a steady rate of 5% per year. If there were 900 skaters per week in 200, what is a good estimate for the number of skaters per week in 2006?