PLEASE HELP ME ITS DUE SOON IF YOU PUT A LINK OR UNHELPFUL ANSEWR I WILL REPORT YOU I WILL GIVE PLUS 10 POINTS TO THE BRAINLIEST.

Ashopper bought a watermelon a pack of napkins and some paper plates in his state there was no tax on food the tax rate on non-food items is 5% the total for the three items he bought was 825 before tags and he paid $0.19 in taxes how much did the watermelon cost

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Is the power produced directly proportional to the wind speed, give reasons for your answer?