A retailer purchased a set of four plates at a cost of $45.00 and plans to sell them for $75.00. What is the percent of markup based on cost?

Were only 64 seats. the remaining 6 students had to travel in a separate van. the equation 2b + 6 = 70 represents the given scenario. what does b represent? the number of buses the number of vans the number of students who rode on each bus the total number of students going to the football game