7+7+7=21 is the same as saying 7 times 3+
=21
Answer:
20 to the 5th power
Step-by-step explanation:
I cannot suggest anything other than the set of real numbers here, but maybe someone else can provide a better answer. As long as you increase or decrease x (which is a real number) then you will get a real number, or the infinite set of real numbers.
√200 = √2·100 = √2 · √100 = 10√2
4:30 hours ..............