A light bulb's brightness is reduced when placed behind a screen. The amount of visible light produced by the light bulb decreases by 25% with each additional layer that is added to the screen. With no screen, the light bulb produces 750 lumens. The lumen is a unit for measuring the total quantity of visible light emitted by a source. Select the correct equation that can be used to represent the lumens, L, after x screen layers are added.

Step-by-step explanation:

Equation for lumens, with x screen layers:

Has the following format:

In which L(0) is the production with 0 layers and r is the decay rate for each additional layer.

Decreases by 25% with each additional layer that is added to the screen.

This means that

With no screen, the light bulb produces 750 lumens.

This means that

Then

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24

correct answer:

b.(19,-2)