This is what it is asking. There can be also other numbers above. These are just the basic numbers for tenths.
Let s represent the short side of the triangle. The long sides of the triangle are each s+1, and the triangle's perimeter is
... s + (s+1) + (s+1) = 3s+2
The length of one side of the square is s-2, and its perimeter is 4 times that, 4(s-2) = 4s-8. The square and triangle have the same perimeter, so
... 3s+2 = 4s-8
... 10 = s . . . . . . . . add 8-3s to both sides
The length of the shorter side of the triange is 10 units.
Answer:

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No she is not correct . 63 divided by 9 is 7 not 6
Answer:
y = -1x + 4
Step-by-step explanation:
equation for one is y = -1x + 5 simple going back from point (5,-2) gave me a b of 4 so yess