Answer:
m=28
n=21
Step-by-step explanation:
3×4=12
7×4=28
28×1.75=49
12×1.75=21
11.111111111111111...%
B
60:7×6=51,428
jskks
Answer:66
an=21+5n
ninth term is a9
a9=21+5x9
a9=21+45
a9=66