So sorry fir it being this late but the answer is B
Answer:
you don't give us the graph though
Step-by-step explanation:
give graph
Answer:
40%
Step-by-step explanation:
Divide the result wanted by the amount tried
-10n-3m because the two negatives (-9nand -n) are like terms and they become -10n because the negative n is basically -1n the -3m is there by itself with no other like terms so it stays the same