What is the arc measure of BC in degrees

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

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?

What is the location of point g, which partitions the directed line segment from d to f into a 5: 4 ratio? –1 0 2 3