Essica is a custodian at oracle arena. she waxes 20 \text{ m}^220 m 2 20, space, m, start superscript, 2, end superscript of the floor in \dfrac35 5 3 ? start fraction, 3, divided by, 5, end fraction of an hour. jessica waxes the floor at a constant rate.

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

Clarence wants to buy a new car. he finds an ad for a car that costs 27,200 dollars. suppose his local sales tax is 7%. -how much would he have to pay? -what is the cost of the car including tax? -if clarence has 29,864 saved, can he pay cash to buy the car?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.