An interval is all the numbers between a set of two numbers in the question we see that we have an inequality graph that include all the numbers form -4 to -1 incisive therefore writing that in interval from we get -4 -1.

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,

146%

step-by-step explanation:

i think the amount would be $140.62