Let

be the identity matrix. Then pick whatever matrix you like for

.
30%of 68 = 30/100*68= 3*68/10=204/10=20.4
The answer is 3,926,780 when you times 11 to 3,56980
We can use the points (1, 4) and (4, 9) to solve.
Slope formula: y2-y1/x2-x1
= 9-4/4-1
= 5/3 or 1 2/3
Best of Luck!
Just sub x in with 5.
So 6(5)^3+8(5) = 6 (125) + 40 = 750 + 40 = 790.
So 790