With one simple geography question? ? i'm just not completely sure of my (picture attached)

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

The oil and gas found in the middle east are regulated by a. organization of petroleum exporting countries b. southwestern asian oil refineries c. north atlantic treaty organization

What is the radius of a circle whose equation is (x + 5)^2 + (y – 3)^2 = 42? 1. 2 units 2. 4 units 3 .8 units 4. 16 units