Answer:

Step-by-step explanation:
25= r•r•8 ⇔ 25/8 = r²
then

Answer:
13/7
Step-by-step explanation:
X + 1/7 = 2
X = 2- 1/7
x = 13/7
Answer:
Base
Step-by-step explanation:
An exponent is a number/letter written to the top-right of a mathematical expression called the base. It means that the base will raised to a certain power.
The radical sign is a symbol for the square root of a number.
is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output.