i need help with these three please please

Zu eCampus | Adelphi University X Launch Meeting - Zoom x 1717 Homework #5 - Cold War Tech x A MTH 110 HW #3 - Chapter 2 Sex + webassign.net/web/Student/Assignment-Responses/last?dep-27672351 To * 2 ( Find the break-even point for the firm whose cost function C and revenue function R are given. (x) = 11x + 27,000; R(x) = 20x ( x, y ) = Need Help? Read It Watch It 5. [0/1 Points] DETAILS PREVIOUS ANSWERS TANAPMATH7 2.5.024. MY NOTES ASK YOUR TEACHER PRACTICE AND + Find the break-even point for the firm whose cost function C and revenue function R are given. X C(x) = 90x + 16,000; R(x) = 210x ( x, y ) = VO O! Need Help? Read It Watch It Submit Answer MY NOTES ASK YOUR TEACHER PRACTICE ANOTHE 6. [-/3 Points] DETAILS TANAPMATH7 2.5.025. An office building worth $4 million when completed in 1997 was depreciated linearly over 50 years; that is, the book value of the building decreases at a constant rate, so that at the end of 50 year the book value is zero. What was the book value, in dollars, of the building in 2013? What will be the book value, in dollars, in 2016? What will be the book value, in dollars, in 2021? $ MacBook Air