Answer:
15
Step-by-step explanation:
a²+20²=25²
a²=625-400
a²=225
a=15
An exponent is a number written above and to the right side of a value or number in math. The value or number is called the base, and the expression is read out as;
"Base raised to the power of exponent."
An example is given below;

In this example, 10 is the base and 3 is the EXPONENT.
The expression is now read out as,
"10 raised to the power of 3"
Note that even unknown values (such x as we commonly use in math) can also be an exponent or base. For example, we can have;

So basically, an exponent indicates the number of times a number is used to multiply itself.
I think it would be A... if it's not A then it would be D.... That is what I think at least... hope this helps! Good Luck!
Answer:
x-intercept (-7,0)
y-intercept (0,2)
Step-by-step explanation:
Ceded is going to be there for a while and he will be there in a few minutes if he wants to join us for a walk in the morning and then we can go to the beach and play with the kids and then we can play together and