Wendy bought 5 tickets for 2.75. she paid for them with a twenty dollar bill. how much money should she have gotten back

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Vanessa earns a base salary of $400.00 every week with an additional5% commission on everything she sells. vanessa sold $1650.00 worth of items last week.

Aa at 9 a.m. it at 4 p.m. he a of $28.84.?