HELPPP RLY FAS Emile is saving money to buy a bicycle. The amount he has saved is
shown in the table.
Weeks
1
2
3
4
5
Amount
$30
$45
$60
$75
$90
$105
Which of the functions below describe the amount A, in dollars, Emile
has saved after t weeks?
A. A(t) = 15 + 15(t - 1)
B. A(t) = 30 + 15(t - 1)
C. A(L) = 15(2)
D. A(C) = 30 + 15t

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.