Hey there mate!
Please check the attached answer of picture for explanation.

Substitute (-11) in for x. You will get 2(-11)-19. Then, use the order of operations to get -22-19=
-41.
Hope that helps!
Answer:
C
Step-by-step explanation:
add them
Total of ratio 5+7=12
60/12 = 5
For boys 5x5 = 25 boys in her class
(For girls 7x5 = 35)
Answer:
56
Step-by-step explanation: