If you could plz help it would be greatly appreciated. Questions in picture :)

Notice that 8 can be written in exponential form of

When you see , recognize that  

3 × = 8

Hence, the answer is . Which means 256.

Here is some indices rules/formulas you might find helpful as well:

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.

just sum

10 + 10 = 20