Sara's mom takes the parkway to work. It takes her 30 minutes to travel from mile marker 88 where she enters to her exit at mile marker 121
What is her average speed?
O 4.0 mph
o 16.5 mph
O 33 mph
0 66 mph

c 1 hour

step-by-step explanation:

m = 2e

m = 2 so 2 = 2e

1 = e

a is the correct

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b