Which of the following best describes the expression 9(x + 7)?

the sum of constant factors 9 and x + 7

the product of constant factors 9 and x + 7

the product of a constant factor 9 and a 2-term factor x + 7

the sum of a constant factor 9 and a 2-term factor x + 7

best answer gets !

the answer is not d i just took the test and it was wrong.

let soccer = x and golf = y

part a

1st equation: x + y = 125

2nd equation: x = y +45

part b

replace x in the 1st equation with the 2nd one:

y + 45 + y = 125

simplify:

2y + 45 = 125

subtract 45 from each side:

2y = 80

divide both sides by 2:

y = 80/2

y = 40

she plays golf for 40 minutes.

part c

no because she plays soccer for 45 minutes longer than golf 40 +45 =   85 minutes, not 80 minutes.

i believe the answer is letter c) 8

step-by-step explanation: