Answer:
a = 4
Step-by-step explanation:
ur welcome
4
the fraction has to equal to 2
-2+4=2
so a/2=4
or 4/2=2
Answer: (6.8 x 10^2) x (1.3 x 10^-3) = 0.884
56.3cm
Check attachment
Here you go
By the way, 1= 6/6 and 2=12/6