Answer:
Maybe -12?
Step-by-step explanation:
Because sometimes variables on their own symbolize 1, so we can subtract 13 from 1 to get -12.
Answer:

The maximum number of pounds p is 224
Step-by-step explanation:
Let
p ----> the maximum number of pounds he can pull without going over the weight limit
we know that
121 pound of rock in the wheelbarrow plus p pounds must be at most 345 pounds
In this problem the word "at most" means "less than or equal to"
so
The inequality that represent this situation is

solve for p
subtract 121 both sides


therefore
The maximum number of pounds is 224
3,4,5 are Pythagorean triplets. then 6,8,10 are, so the answer is 10
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It is the answer number 2