It looks like the length of a and b should be the same. You can use the Pythagorean theorem (only works with right triangles):
a² + b² = c² (c is the hypotenuse or the longest side of the triangle, a and b are the other side lengths of the triangle)
a² + (4)² = (5)²
a² + 16 = 25
a² = 9
a = 3
a and b have a length of 3
I'm guessing this is what the question is asking?
Any number to the power of a negative integer will be 1 over that number with the absolute value of the power, so it looks like this:

Therefore, you just need to 8² which is 64, and then do 1 over that (1/64) because it's a negative power.
1. D
2. A
3. B
4. A
5. C
6. D
7. A
Answer:
it would be the same as 370-240 which equals 130
Step-by-step explanation: