Which list contains only rational numbers?

Option A.

Step-by-step explanation:

Rationals numbers are defined as all those numbers which can be written as fractions, which have the form:

Being the numerator a and the denominator b integer numbers.

The numbers in the option A are rational numbers, because:

All these number can be written as fractions, therefore all of them are rational numbers.

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

the car was traveling 40 mph before it started skidding. ( 2 points ) 17. was the driver were her brakes working at 75% efficiency or better? ( 2 points ) yes 29.

step-by-step explanation: