Briana is a medical safety engineer who assesses public health risks. In a current project, she is investigating the potential hazards of microwave signals from transmitters on cell phone towers. Suppose the signal strength of a transmitter is given by the function , f(x) = 100/x^2 where xis the distance (in miles) from a cell phone tower. In order to find the signal strength along a road, Briana needs to evaluate the expression , f(g(-5)) where . g(x) = 15 + 2x

What is the value of the expression? f(g(-5))