Answer:
63 units
Step-by-step explanation:
The profit function P(x) is given by the revenue function minus the cost function:

The number of units sold 'x' for which the derivate of the profit function is zero, is the number of units that maximizes profit:

The number of units that should be manufactured so that profit is maximum is 63 units.
Answer:
−9.3x + 13.1y
Step-by-step explanation:
1 is b
2 is c
3 is c
4 is a
5 is c
6 is b
7 is a
8 is d
9 is d
10 is d