To fill in the first column = Every day is 7 dollars, which you have already answered. The second one would be = day 0 = 30 dollars. And then it would be 4$ for days 1 through 10. Hope this helps!
An increase by a percentage equal 1+percentage value multiplied by the original value. 7%=0.07 1+0.07=1.07 $43.99(1.07)=$47.0693 Round that to two decimal spaces. $47.07