Ineed the answer for this algebra problem.

9(x+10)=9(x)+9(10)

Aquadratic function f(x) has a turning point at (3,-7). what is the turning point of -f(x)?

Will mark brainliest question in the pic.

Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212