(85^4 - 75^4)/(85^3 + 85*75^2 + 75*85^2 + 75^3).=

Asap! i'm not good math and i'm lost.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)