Which expression should be used to estimate the answer to this story problem? travis planned to watch 4 dogs while his neighbors were out of town for a week. each dog would need to eat 612 ounces of dog food. how many ounces of dog food were needed for all the dogs? a. 600 + 4 b. 600 – 4 c. 600 × 4 d. 600 ÷ 4

Molly shared a spool of ribbon with 12 people. each person received 3 feet of ribbon. which equation can she use to find r, the number of feet of ribbon that her spool originally had?

Bring the fraction a/a-4 to a denominator of 16-a^2

Astudy found that the variance in the number of vehicles owned or leased by subscribers to a magazine is .094. assume a sample of 12 subscribers to another magazine provided the following data on the number of vehicles owned or leased: 1,1,1,0,3,2,1,1,2,1,0, and 1 a) compute the sample variance in the number of vehicles owned or leased by the subscribers (to 4 decimals). b)test the hypothesis to determine whether the variance in the number of vehicles owned or leased by subscribers of the other magazine differs from .calculate the value of the test statistic (to 3 decimals).