-16x= 80

A. X= 5
B. x= -96
C. x = 96
D. X=-5

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years

Ineed i been stuck on this question since yesterday

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1