Answer:
c
Step-by-step explanation:
c, because if you're doing a percentage of kids who bring lunches you need to do every grade level and every student to get a proper percentage
Given Equations
- 5x+3y=8--(1)
- 4x+7y=34--(2)
Let it has solution (x,y)
Add both


It will also have same solution (x,y)
Answer:
31
Step-by-step explanation:
Substitute the values for the variables.

Answer: C and D
Step-by-step explanation:I just did it my bad for the late response.
Answer:
f(6) = 53
Step-by-step explanation:
f(x) = 10x - 7
We want to find f(6)
To do so simply substitute 6 for x in the equation
Equation: 10x - 7
x = 6
f(6) = 10(6) - 7
multiply 10 and 6
f(6) = 60 - 7
subtract
f(6) = 53