HELP ASAP WILL MARK BRAINLIEST

Determine the number of girls in a math class with 87 boys if there are 25 girls for every 75 boys

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?