The quantity of Sensitech laser gaming mice demanded each month is related to the unit price by the equation

p = 42/0.03x^2 + 1 (0 ≤ x ≤ 20)

Find the revenue function R.

Find the marginal revenue function R'.

R = p x = 42/0.03x + x = 1400 /x + x

dR/dx = -1400 /x^2 + 1

To find the revenue function R, we need to multiply the unit price (p) by the quantity (x) demanded each month. So, the revenue function R can be expressed as:

R = p * x

Substituting the equation of p into the revenue function, we get:

R = (42/0.03x^2 + 1) * x

Simplifying this expression, we have:

R = (42/0.03)x^3 + x

Therefore, the revenue function R is given by:

R = (42/0.03)x^3 + x

Now, let's find the marginal revenue function R'.

To find the marginal revenue function R', we need to differentiate the revenue function R with respect to x. In other words, we need to find the derivative of R with respect to x.

Differentiating the revenue function R = (42/0.03)x^3 + x, we get:

R' = (3 * (42/0.03))x^2 + 1

Simplifying this expression, we have:

R' = 1260x^2 + 1

Therefore, the marginal revenue function R' is given by:

R' = 1260x^2 + 1