You will get brailest if you help me tank you

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

What function has a range {yly< 5}? question on picture above^

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