What is the polynomial -9+1/8x-7x^4+x^2-x^5 in standard form

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.

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.