PLS HELP its about Triangles Thank you!!

15 is 6

Step-by-step explanation:

for 15 its a 3-4-5 triangle

15. 6

if you mean

then it's c. 8, -7/3

but if you mean

then it is

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

hope this !