5197+175.75x=5500+150.50x
25.25x=303
X=12 (tons)
Answer:
Step-by-step explanation:
x×x=x²
2×x=2x
2×x=2x
2×2=4
Add like terms to make the equation:

So<em>:</em>
<em />
<em />
It completely depends on the teacher, but typically exams seem to be worth at least 50% of your final grade.