Alan has an annual base salary of $21,000. In addition to his salary, he earns 7% of his total sales (S). If he wants to earn at least $49,000 next year, how much does he need to sell?

A. S > $400,000

B. S > $213,430

C. S > $550,000

D. S > $343,000

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?