50 POINTS AND WILL MARK BRAINLIEST It's due in 10 minutes, please show work
a. Find the domain and range of f(x)=2log_3(x^2-4x-5)

b. find the domain and range of the function f(x)=5/(2+3^x)

c. If 8^x=27, then what is 4^(2x-3)

This

Step-by-step explanation:

Is your answer mark me brainliest

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

alright well the answers to your question is

2xy/9 hope this have a nice day : )

step-by-step explanation: