The percent of increase is 2%
From the choices above the answer would be: D 7y^4-13x^3 inches
15 is answer
15-9=6 and 15x6= 90
Perhaps you could just outline the topic lightly but try your best not to give away your topic idea. In this case talk about technology but don't talk about the dependency of technology, for the first paragraph as mentioned in your title text and then in your second paragraph you could talk about the dependency of technology.