Answer:
Solve the 1st equation for y and then you substitute the answer of the y value to the other equation to get the x value
8x + 4y = 20
4y = 20 - 8x
y = 5 - 2x
This is not enough info to determine the length of teds pencil
Answer:
2 dollars
Step-by-step explanation:
5% interest is 1.05
1.05 times 40 equals 42
42-40 equal 2
So 2 dollars