mary earns $28000 a year. One week she grossed $658. She had sold $1673.19 worth of merchandise. What is the rate of her commission?

If a baby uses 15 diapers in 2 days how many diapers will the baby use in a year

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate. true or false?

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect