Assuming f(x) is the cost and X is the number of months.
f(x)=2x+40
Follow pemdas. Evaluate operations in parentheses first.
2*(-7)+14-4
Then multiply
-14+14-4
Then add and subtract from left to right
-14+14=0
0-4=-4
Final answer: -4
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200 divided by 8=25
25 x 3 <span>=75g</span>
