Find factors of 12 and 21
Divide 3 from both numerator and denominator.
(12/21)/(3/3) = 4/7
4/7 is your ratio equivalent to 12/21
hope this helps
Answer:
A.
{7}
Step-by-step explanation:
hello
sqrt(56-7) =sqrt(49)=7
Answer:
(1/3)⁷
Step-by-step explanation:
negative exponents work like this:
x⁻²=(1/x)²
Apply this theory to this equation:
3⁻⁷=
(1/3)⁷
I couldn't find anyone that led to the answer 20 but the one that ended closest to 20 is the last one.