Corey bought 2 1/2 liters of paint for$60
what was the cost per liter of paint.

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

3. a sum of $2700 is to be given in the form of 63 prizes. if the prize is of either $100 or $25, find the number of prizes of each type.

Find the missing factor. write your answer inexponential form.9^2=9^4×