It should just be y = 40x :)
You cant subtract from a multiplication expression.
If there is a way.. im not sure.
V = s^3 for a cube
V = (3.5 * 10^-2) ^3
the numbers are cubed and the exponents are multiplied
V = (3.5)^3 *10^(-2*3)
V= 42.875 * 10^-6 m^3
Answer:

Step-by-step explanation:
The equations of the system are



From the graph it can be seen that points
and
falls in the bounded region.
The income will be


So, the person can do 3 small jobs and build 1 and a half cabinets per day.
The maximum income will be
.