50 POINTS & 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)

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

answer: y = 3/2 x - 3

y = 1/8 x - 3/4 that would be your correct option

step-by-step explanation: w

inch

step-by-step explanation:

yard and mile are too big.

3

step-by-step explanation: