Which of the following statements contain a variable? check all that apply.

a. how much the car weighs.
b. five feet tall.
c. the length of the track.
d. the highest temperature over three days.

the answer is D

Step-by-step explanation:

this is because the number is unknown so  you have to put a variable

A, C, and D

Step-by-step explanation:

B doesn't because the "five feet tall" isn't something that can change.

I could be wrong but, I think this is right sorry if it isn't! Tried my best fam!

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet