An inlet pipe can fill an empty swimming pool in 7 hours, and another inlet pipe can fill a pool in 2 hours. how long will it take both pipes to fill the pool?

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

Which rectangle if translated 6 units right and 16 units down and the rotated 90° clockwise about the point (4, -11) will result in rectangle e?

Amayoral candidate would like to know her residents’ views on a tax on sugar drinks before the mayoral debates. she asks one thousand registered voters from both parties. these voters are an example of a census population convenience sample simple random sample