Answer:
B. 840
Step-by-step explanation:
21 is 70% of 30 and 70% of 1,200 is 840.
The greatest common factor is 1 because there is not a number that goes into or will multiply and get 49 and 4. 49 is an odd number and 4 is an even number so the GCF is 1.
Answer:
The answer would.be A. 570 m
Answer:
64
Step-by-step explanation:
8² = 64
9² = 81 ( doesn't fit into 72)