When simplified, which of the following expressions has a coefficient of -3? (I will give 30 points to the person who answers this question.)

b. astronomers

there are no answer choices

step-by-step explanation:

46

step-by-step explanation:

given

height = 168 cm

formula

height =2.47*f+54.13

solution

168 = 2.47f + 54.13             subtract 54.13 from both sides

168 - 54.13   = 2.47f             combine

113.87 = 2.47f                     divide by 2.47

113.87 / 2.47 = f                   combine

46.1 = f  

answer: 46 cm

add them

step-by-step explanation:

idk you did not give the options or numbers so you cant solve it