Questions for my math...?

Be sure to clearly show how you arrived at your answer. You must solve at least two of the problems using equations. A) the advance ticket sales for this years school play were twice the total of last years ticket sales. If 235 tickets were sold at the door to boost this years total ticket sales to 825, how many tickets were sold last year? B) janelle bought some candy for $1.70. Janelle only bought jawbreakers (5cents each) and licorice (8cents each) if she bought five more licorice than jawbreakers, then how many of each candy did she buy? C) Bret is presently nine years older than Joan. In eight years, six times Bret's age will equal seven times joans age. What are Bret and Joan's present ages? D) mrs. Habscheid has a plot or ground in her backyard prepared for a garden. She wants to use half of the spaces for vegetables, a quarter for fruit(raspberries and strawberries) a sixth for flowers and the remaining 8m^2 for a compost heap. How large is the space mrs. Habscheid has prepared for her garden?