Find the slope and y-intercept of line 3x +y -9=0

Through: (-3,-3) parallel to y= 7/3x+3

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?