1. At Sue Birdwell Intermediate School the ratio of boys to girls is 7 to 5. If there are 150 girls at the school, how many boys are at the school? 2. The ratio of cupcakes to cakes is 6 to 2. If the bakery sold 200 cakes, how many cupcakes did the bakery sell?

3. A basketball player made 15 free throws in her last 32 attempts. How many free throws would the basketball player be expected to make in 160 attempts?

4. A soybean company says 4 out of every 5 of its seeds grow. If a farmer planted 60 soybean seeds, how many can he expect to grow?

5. At an automobile dealership, 2 out of every 12 cars are red. What is a prediction of the number of red cars sold when the automobile dealership sells 180 cars?

6. In a grocery store parking lot the ratio of trucks to cars is 2 to 3. If there are 300 trucks in the parking lot, how many cars are there?

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.