Choose the answer. 1. (1 pt) a rectangular playground measures 75 feet by 40 feet. what is the area of the playground? a. 115 feet b. 115 square feet c. 3,000 feet d. 3,000 square feet

Find an equation of the line perpendicular to the graph.

Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?

Which of the following are accepted without proof in a logical system? check all that apply.