7. Gusion has a t-shirt business where she sells her own line of designer shirts. Compute the selling price if the a shirt costs amount is 150.00 per price and the mark up percentage is 20%? (P 150.00, P 160.00 .P 170.00 P 180.00) 8. Lancelot is a pastry chef where he makes and sells birthday and wedding cakes. Compute the selling price if the costs for making a cake are 1,000.00 and the mark up percentage is 50%? (P 1350.00, P 1495.00. P 1500.00, P 1615.00)