Answer:
90
Step-by-step explanation:
Answer:
1050
Step-by-step explanation:
Let x = full capacity

Move the variable to the left side by subtracting both sides by 


Combine the like terms (don't forget about common denominator)


Multiply both sides by
to isolate the x


Answer:
perimeter = 42 units
Step-by-step explanation:
Answer: 2x + 12 = 30
12 is the initial fee, then x is the unknown variable. Since each snack costs 2 dollars, and we don't know how many she had, we can use the equation:
2x + 12 = 30
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snack initial total
fee fee $ spent