pemdas
parenthases (none)
exponents
multiplication so
exponents
c^0.5
so 0.5=1/2 and if you have
x^(z/t)=[tex] \sqrt[t]{x^z} [/tex] so
c^1/2=[tex] \sqrt[2]{c^1} or \sqrt{c} [/tex] so
multiplication
-9 times √c is the answer or more commonly written as
-9√c