Respuesta :

NgShiYin

Answer:

123

Step-by-step explanation:

Substitute values of y and d into equation.

12y+9d = 12(5) + 9(7)

Evaluate.

12(5) + 9(7) = 60 + 63

Simplify.

60 + 63 = 123

MrFighter15

Answer:

123

Step-by-step explanation:

12y + 9d

12(5) + 9(7)

60 + 63

123