mary robertson sells tires at a large car service center. she earns 10% commission on the first $1,000, 15% on the nest $2,000, and 20% on sales of more than $3,000. last week she sold $3,400 worth of tires. what was her total commission?

Olga used 100 ounces of flour to make 225 muffins. how many ounces of flour will be used to make 300 muffins?

Which number completes the inequality? 2/3 < _ < 7/9

Harry and jay are both flying on the same plane with an airline that randomly assigns seats to passengers. of the 182 total seats on the plane, 62 are window seats, 58 are middle seats, and the rest are aisle seats. what is the approximate probability that both harry and jay will be assigned aisle seats on the same plane? a. 11.48% b. 3.3% c. 2.08% d. 26.26%