Sierra is trying to find out how tall the flagpole is outside of the courthouse in her hometown. She is standing 20 feet from the base of the flagpole and the angle from her eyes to the top of the flagpole is 80°. Her eyes are 4.5 feet from the ground. What is the height of the flagpole? Round to the nearest tenth and show your work.

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).

answer: they are supplementary angles

step-by-step explanation: 161+19=180. supplementary angles equal 180 degrees