If Bob can paint a fence in 3 hours, and Bill can paint a fence in 9 hours, how long will it take if they work together? (If your answer has a fraction in it, put it as a decimal.)

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Name the significant digits in: 500.0320. Separate them by commas.

A lawnmower that was discounted 20% sold for $210.00. This was including a 5% sales tax. What did the lawnmower cost before it went on sale, excluding sales tax?

xy=yx is an example of what property?

x(a+y)=xa+xy is an example of which property?

a(xy)=(ax)y is an example of which property?

Josh deposits $5000 in his bank account (which earns simple interest). When he takes it out after 2 years, the amount of money has grown to $5700. What is the annual rate of intere

If 9 sheep can survive on 4 bales of hay for 8 weeks, how long can 3 sheep survive on 2 bales of hay?