r= 9 because 45/5 is 9 and it works the same way for the rest of the problems.
Answer:
Step-by-step explanation:
area of square = side x side
thus, each side = square root of area
= 6 = 6
7
a dollar 95 my man I did this
Well X=8 in standard form is NaN or 8 * 10 to the power of 0