Can someone please answer 2,3,5 and 8 on this please?

What is the relationship between all triangles that can be drawn given the same three angles

Rationalize the denominator- 12x/√x-10

Sally deposited money into a savings account paying 4% simple interest per year. the first year, she earned $75 in interest. how much interest will she earn during the following year? show your work and explain your reasoning in the space provided below.