2. Find the unit rate demonstrated in the graph below.
30
27
24
21
18
Distance (Miles)
15
12
9
6 3
1 2 3 4 5 6 7 8 9 10
Time (Hours)
A. 9 miles per hour
B. 4.5 miles per hour
C. 3 miles per hour
D. 1.5 miles per hour

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.

Atechnician compares repair costs for two types of microwave ovens (type i and type ii). he believes that the repair cost for type i ovens is greater than the repair cost for type ii ovens. a sample of 6767 type i ovens has a mean repair cost of $79.79$⁢79.79. the population standard deviation for the repair of type i ovens is known to be $19.18$⁢19.18. a sample of 5555 type ii ovens has a mean repair cost of $75.24$⁢75.24. the population standard deviation for the repair of type ii ovens is known to be $21.40$⁢21.40. conduct a hypothesis test of the technician's claim at the 0.050.05 level of significance. let μ1μ1 be the true mean repair cost for type i ovens and μ2μ2 be the true mean repair cost for type ii ovens. step 2 of 4 : compute the value of the test statistic. round your answer to two decimal places.

Write a subtraction problem that has mixed numbers and requires renaming. draw a model illustrating the steps you take to solve the problem.