What expressions are
equivalent to 4(z+3)?

Allie answered 72% of the questions on her math test correctly. if she answered 18 questions correctly, how many questions were on the test?

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Siri can type 90 words in 40 minutes about how many words would you expect her to type in 10 minutes at this rate