#3. Hour ≤ 35 (If hours are less than or equal to 35), then she makes $14.50 per hour. Hour > 35 (If hours are greater than 35), then she makes $14.50*1.5 per hour.
48h - 35h = #Hours more than 35 48h - 35h = 13
35h*$14.50/h + 13h*($14.50/h*1.5) = $790.25
#4. Round trip = $398.60 Hotel = $115.70*n (n in this case, is the # of nights) Cab = $40.00