Represent the following expressions as a power of the number a(a$\ne $ 0) : (a^2*a^-5)^-3*(a*a^3)^4

What is the measure of sty in oo below? 130 310 230 50

Which of the following represents the factorization of the trinomial below? x^2+7x-30

Meghan has created a diagram of her city with her house, school, store, and gym identified. a. how far is it from the gym to the store? b. meghan also wants to walk to get some exercise, rather than going to the gym. she decides to walk along arc ab. how far will she walk? round to 3 decimal places.