It's 78.38
You have to square root
Answer:
210
Step-by-step explanation:
5 is a prime number, 6 = 2·3 and 7 is a prime number. Since those number do not have common factors, the least common multiple will be their product:5·6·7 = 210 . Given fractions are already in order from least to greatest.
Answer:
2x +21
Step-by-step explanation:

1/2 of 20 is 20/2 which is 10.
All you really need to do here is to divide 20 by 2 to get 10.