Students at the edwards school conducted a survey to find out students’ birth places. there are 20% in city/15%out of state /65% in state but not in city there are 400 students in the school. find how many students were born in city. born out of state. born in state, but not in city.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?