I’ve been trying to figure out this question on my homework and i’ve been confused for days now.

Which of the following expressions is equal to 2x^2+8

45 was divided by a power of ten to get 4.5. what power of ten was it divided by? people 4.5

Koji is installing a rectangular window in an office building. the window is 823 feet wide and 534 feet high. the formula for the area of a rectangle is a=bh. what is the area of the window? enter your answer as a mixed number in simplest form in the box. $$ ft2