Respuesta :
Answer:
80
Explanation:
(2 x 10 - 5) + (7 x 10 - 5)
= (20 - 5) + (70 - 5)
= 15+ 65
= 80
80
follow the rules of orders of operations:
parentheses
exponents
multiplication
division
addition
subtraction
follow the rules of orders of operations:
parentheses
exponents
multiplication
division
addition
subtraction