Answer:
1). x = 81
2). x = 84
Step-by-step explanation:
1). By applying geometric mean theorem in the given triangle,

56x = (18√14)²
56x = 4536
x = 
x = 81
2). By applying geometric mean theorem,

16x = (8√21)²
16x = 1344
x = 
x = 84
Answer:
3m^4
Step-by-step explanation:
the third one
90 + 50 = 140
140 - 7 = 133
130 - 140
21n+14 you have to find the value of n
Step-by-step explanation:
in one month , it runs for 52/12 weeks
that is 4 weeks