I have an assignment due tomorrow and am having some trouble. Thanks in advance.

Solve for x

(1) (2^x-4)^x = 32

(2) 8^x+1 = (1/2)^x+5

…and a couple multiple choice…

(3) It is in the form of a picture b/c of square root signs that I can’t make on a keyboard.. lol
http://img.photobucket.com/albums/v625/toallofyou1418/math2.jpg

(4) Joey has been collecting antique toy cars as an investment. The value "V," in dollars, of a toy car with respect to it’s age "t," in years, can be modelled using the function:

V = 2(3)^t/4

Which of the following is true?

(a) The car’s initial value was and it tripled value every 4 years.
(b) The car’s initial value was and it doubled value every 4 years.
(c) The car’s initial value was and it tripled value every 2 years.
(d) The car’s initial value was and it quadrulped value every 3 years.

Thanks a lot <3
Dominic: I didn’t write the question down wrong, this is how it was on the assignment. Here it is in paint!
http://img.photobucket.com/albums/v625/toallofyou1418/math3.jpg