pafff
g(x)=\(\sqrt{x-7}\)
this means if you put in 8 for x then you will get g(8)=\(\sqrt{8-7}= \sqrt{1}=1\)
so subsitute and solve
g(8)=\(\sqrt{8-7}= \sqrt{1}=1 or -1\)
g(32)=\(\sqrt{32-7}= \sqrt{25}=5 or -5\)
g(80)=\(\sqrt{80-7}= \sqrt{73}=\) aprox 8.544 but √73 would be acceptable