Answer: $300
Step-by-step explanation:
Mr. Calvin earned 
He spent
on food i.e.



Remaining money = 
So, he saved $300 after expenses
Answer:
18.2
Step-by-step explanation:
Answer:
9/4:3/8=9/4×8/3=72/12=24/4=6/1=6
Answer:
(2,4)
Step-by-step explanation:
We have the system:
y=x+2
y=3x-2.
This is already setup for substitution.
I'm going to replace my first y with what the second y equals.
That is, I'm going to write 3x-2=x+2.
Time to solve the following for x:
3x-2=x+2
Subtract x on both sides:
2x-2= 2
Add 2 on both sides:
2x. = 4
Divide both sides by 2:
x. = 2
Now that we know x=2 and we have an equation that relates x to y: either y=x+2 or y=3x-2, doesn't matter which we use, we can find y.
So we y=x+2 with x=2 which means y=2+2=4.
So the solution, the intersection, is (2,4).