Monica purchased adult and youth tickets for the fair. she bought x adult tickets for $28 each and y youth tickets for $15. write an expression that can be used to show the total cost, c, of all tickets.

Svetlana's hair is 4 4 centimeters ( cm cm) long. her hair grows 1 . 5 cm 1.5cm per month. svetlana wants her hair to be less than 1 6 cm 16cm long. write an inequality to determine the number of months, m m, svetlana can allow her hair to grow so that it is less than 1 6 cm 16cm long.