An electronics firm charges a $5.00 fee plus $0.25 per pound for shipping and handling. Paula orders an item that weighs pounds, and she pays $8.25 for shipping and handling. Which equation could be used to find out how much the item weighed?

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.