Respuesta :

menafox

Answer:

About 163 (Exact Answer: 163.1)

Step-by-step explanation:

11.3s + 10.5t

Replace s with 7 and t with 8.

11.3(7) + 10.5(8)

Multiply.

11.3(7) + 10.5(8) =

79.1 + 84

Add.

79.1 + 84=

163.1 ≈ 163