I think you add the exponents im not sure haven't done it in long time
In my opinion the answer is <span>m2 – 100 = –99
proof
</span>m2 – 100 =<span>(m – 10)(m + 10)
for eg. m=1, </span>(-9)(11)= <span>–99</span>
Answer:
4 minutes
Step-by-step explanation:
looks at the 8 gallon line and follow it over to the corresponding minute line
X + 13 = -4
x = -4 - 13
x = - 17
I am thinking it is the first one..solution is -17