Next Pretest: Expressions and Equations involving Rational Numbers
Drag the tiles to the boxes to form correct pairs,
Match the pairs of equivalent expressions,
(-14 +26)-(1+26)
46+12
(5426)+(26+3
85-15
(363)–(8468)
(-10+b)+(765)
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DOLL
FC97828

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?

Set up and solve a proportion for the following application problem. if 55 pounds of grass seed cover 404 square feet, how many pounds are needed for 7272 square feet?

1. an economy consists of three workers: larry, moe, and curly. each works 10 hours a day and can produce two services: mowing lawns and washing cars. in an hour, larry can either mow one lawn or wash one car; moe can either mow one lawn or wash two cars; and curly can either mow two lawns or wash one car. a. calculate how much of each service is produced under the following circumstances: a. all three spend all their time mowing lawns. b. all three spend all their time washing cars. c. all three spend half their time on each activity d. larry spends half of his time on each activity, while moe only washes cars and curly only mows lawns b. using your answers to part a, draw a production possibilities frontier and label points a, b, c, and d on your graph. explain why the production possibilities frontier has the shape it does. c. are any of the allocations calculated in part a inefficient? explain.