Subtract.
1 1/3 - 2/3
Convert 1 1/3 into an improper fraction:
4/3 - 2/3
Subtract the numerators together:
2/3
So he read 2/3 more time on Saturday than on Friday.
Answer:
10.5
Step-by-step explanation:

as you notice above, is the first-row components from A, multiplying all the columns subsequently on B, and you add the products of that row, that gives you one component on the AB matrix
in the one above, we end up with a 2x3 AB matrix
Shifting a circle results to changes in the coordinates of the circle. For instance, if the coordinates of the center of the circle is taken to be (0,0), the new coordinates will be [(0+5),(0+2)] after shifting. The equation of the circle will also change with the same margin.
That is, the new equation will be;
(5+x)^2+(2+y)^2 =19
Notice, only the coordinates changes.