The Baltimore Zoo feeds their elephants a combination of fruit and grass. The zookeeper would like to create a model to represent how much food the elephants eat. The elephants eat 22 pounds of fruit and
an additional 30 pounds of grass per elephant.
Which models the linear relationship between the total weight of elephant food, f (x),
based on the number of elephants, x? Select all that apply

When x = 3 and y = 5, by how much does the value of 3x2 – 2y exceed the value of 2x2 – 3y ?

Find the rate of change for the situation.you run 7 miles in one hour and 21 miles in three hours.

Arecent study focused on the number of times men and women who live alone buy take-out dinner in a month. assume that the distributions follow the normal probability distribution and the population standard deviations are equal. the information is summarized below. statistic men women sample mean 24.85 21.33 sample standard deviation 5.54 4.93 sample size 34 36 at the 0.01 significance level, is there a difference in the mean number of times men and women order take-out dinners in a month? state the decision rule for 0.01 significance level: h0: μmen= μwomen h1: μmen ≠ μwomen. (negative amounts should be indicated by a minus sign. round your answers to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? what is the p-value? (round your answer to 3 decimal places.)