-(j-7)+3=5 what is j?

Will give find an equivalent function to f(x)=5(2)^3x. the 5(2)^3x means 5(2) to the 3x power answer choices: a: f(x)=125^x(8)^x b: f(x)=10^2x c: f(x)=40^x d: f(x)=5(8)^x

How do you use the additive inverse to evaluate an expression that uses subtraction in a full sentence

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?