Express this number in a scientific notation

9 ten thousandths

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?

Solve the following system of equations express your answer as an ordered pair in the format (a, b) with no spaces between the numbers of symbols 5x+2y=22

As a salesperson you get $18/day and $2.80. for each sale you make ifyou want to make at least $79 in one day, how many sales would you need to make? a 21b 22c 23d 24