It cost abdul $6.42 to mail a 42 oz. package. round to the nearest cent, what was his cost to mail per ounce?
a)$6.00
b)$1.50
c)$0.30
d)$0.15

divide and round to the nearest tenth
$2.30 divided by 9
a)$25.56
b)$0.25
c)$0.26
d)$25.55

jeanie's car averages 32 miles per gallon and the current cost of gasoline is $3.10 per gallon. to the nearest cent, what is the cost per mile?
a)$0.11
b)$0.10
c)$0.09
d)$0.08
(i wanna say b but i'm not sure)