54 because if x+y=82 and x-y=26 add 26 and 82 is 108 the divide it by 2 your answer is 54
I believe the answer will always be one.
Heres an example: 5/8 • 8/5 = 1
Answer:
B and D (
Step-by-step explanation:
1*2/3*2=2/6
1*3/3*3=3/9
I don't think there is one. A triangular pyramid has 4 faces and 4 vertices, and a <em>square pyramid</em> has 4 faces and 5 vertices;