Angel is a salaried plus commission employee. Angel has a monthly salary of $2,100 and earn 4.5% commission on all sales. write an expression that represents Angel total earning in one month if he has $8,400 in sales? ( just the problem , no need to solve.

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