Number 3 because there is one output(y value) for one input (x value)
we know the perimeter is 24, and is an equilateral triangle, so it has three equal sides, so each side is 24 ÷ 3 = 8.

The 3 angles need to equal 180 when added together:
A) 49 + 59 +72 = 180
The others do not equal 180
Answer:
0, 1, 2, 3
Step-by-step explanation:
-1 < x < 4 means that x has to be an integer (whole number aka no fractions) between -1 and 4. Note that the < and > means that x cannot be -1 or 4 since it has to be greater than -1, or smaller than 4.
I think it is 100. I'm not sure at all.