The shool store sells bottles of water and soft pretzels during lunch. Each bottle of water costs $0.75, and each pretzel costs $1.25. During one lunch period, the number of water bottles sold and the number of pretzels sold added up to 97, and the store made $96.25. Which system of equations could you write to answer this question: How many bottles of water, w, and how many pretzels, p, did the school store sell?