I think its A not 100% sure its the only one that starts on -3 but i think it is hope i helped you out
Answer:
The length of the longest side of the triangle is 13 inches
Step-by-step explanation:
step 1
Find the value of x
we know that
The perimeter of triangle is equal to the sum of its three length sides
so


we have

substitute

solve for x

step 2
Find the length of the longest side of the triangle
Remember that in a right triangle, the longest side is the hypotenuse
so
(2x+3) is the longest side
substitute the value of x

You Have Passed Thy Test!!! BADAAAA (\•o•/)
6/21 I think cause you can't go down any more