6. identify an equation that models the situation and find its solution. it’s going to be lindsay’s birthday soon, and her friends mary, jacqui, tadeusz, opal, and tony have contributed equal amounts of money to buy her a present. they have $45.00 to spend between them. determine how much each contributed. (1 point) 5y = 45.00; y = $9.00 5y = 45.00; y = $10.00 5 + y = 45.00; y = $39.00 5 + y = 45.00; y = $40.00