1. An amusement park reduce its admission price to $15.50 per day, but now charges $1.50 per ride. Mark has $26 to spend on admission and rides. Write and solve an equation to find how many rides Mark can ride in one day.
2. Theo made a donation to a charity. His grandfather agreed to add $4.00 to Theo's donation amount and then donate half of that sum. Theo's grandfather donated $4.25. Write and solve an equation to find the amount of Theo's donation.

3. The Hair Care Salon charges a stylist $30 per day to rent a station at the salon. Rhonda, a stylist makes $10.50 on each haircut. Which equation will help her decide how many haircuts she must give in one day to make $138 after paying rent for her station?
A. 30h-10.5=138
B. 10.5h+30=138
C. 30h+10.5=138
D. 10.5h-30=138
Lonnie chose B as the correct answer. How did he get that answer?