The graph represents a mechanic's labor costs for a given
number of hours of car repair.
which statement describes the relationship between labor
cost and time for a car repair?
car repairs
all repairs requiring 1 hour or less have the same labor
cost.
o labor costs the same no matter how many hours are
used for a repair.
labor costs for a repair are more expensive as the
number of hours increases.
there is no cost of labor for a repair requiring less than
1 hour.
labor costs ($)
+
0.25 0.5 0.75 i 1.25 1.5 1.75 2 2.25 2.5
labor time (hours)

Can someone tell me if this is perpendicular? !

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?