Algebra problem plz .
bret wants to plot a graph to show the price of different numbers of skateboards. he has to plot the following points:
(1, 49.99), (2, 99.98), (3, 149.97), (4, 199.96)which of the following best describes how the y-axis should be labeled?
from 0 to 200 at intervals of 50
from 0 to 400 at intervals of 50
from 0 to 500 at intervals of 100
from 0 to 150 at intervals of 100

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.