If the market price for chair is $24 in the marginal cost for the chairs seven dollars the marginal revenue from the chair would be

search the worksheet up on the internet

step-by-step explanation:

it works trust me

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,