The answer is 24. If you cross multiply witht he eight over top of the twenty-four, and the x (unknown length of shadow) over seventy-two and cross multiply (8 times 72, x times 24) then get 576 = 24x and divide twenty four on both sides, then that should give you the correct answer.
I think t = 11:
42 - 35 = 8 - 12 + t
7 = 8 - 12 + t
7 = -4 + t
7 + 4 = t
11 = t
Im sorry if this is wrong
Sub in what X and y are:

. Solve the exponents (if the exponent is 2 multiply the whole number by itself twice, if it were 3 you would multiply the whole number by itself three times): 3·3=9, 3·3=9: 9(9)= 81. :)
Answer:
no answer
Step-by-step explanation:
big brain