6, 16, 26, 36, 46, 56, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 76, 86, 96 so 20 6's
Answer:
(c) The x and y coordinates are switched
Step-by-step explanation:
Given

See attachment
Required
Determine the error in the plot
The plot on the attached graph is represented with: 
This implies that Raj plotted the x coordinate on the y coordinate and vice versa.
Hence: (c) is true
The answer would be A)20/77.
The reason is that without replacement it would go (10/22)*(12/21)=0.2597
You can do the easy route I did then do (20/77) which would also give you 0.2597.
(81m^6)^1/2 = (3^4*1/2) (m^6*1/2) = 3²m³
harvey can mesure 3 qrt in the 3 qrt container and 1 qrt in the 5qrt container