Answer:
The cost of an oil change for 1 truck was $42
Step-by-step explanation:
Let
x -----> the cost of an oil change for 1 truck
y -----> the cost of gas for 1 truck
z ----> the total bill
we know that
![z=11[x+y]](https://tex.z-dn.net/?f=z%3D11%5Bx%2By%5D)
we have


substitute and solve for x
![694.32=11[x+21.12]](https://tex.z-dn.net/?f=694.32%3D11%5Bx%2B21.12%5D)


Answer:
3
x
2
+
2
x
−
2
Step-by-step explanation:
Answer:
no because for right angle triangle the sum of the sq of the two smallest side is equal to the sq of biggest side
6x-18
you pretty much h just multiply both the first part of the parentheses by the number outside, then the second :)