Four thousand two hundred washers per steel strip. Cost: $8.75 per strip
Direct Labor Charge: $17.65 per hour
Thirteen thousand five hundred washers punched per hour.
What is the prime cost per washer?

Aschool puts on a play. the play costs $1,200 in expenses. the students charge $4.00 for tickets. there will be one performance of the play in an auditorium that seats 500 people. what is the domain of the function that shows the profit as a function of the number of tickets sold?  

Which expression converts 45 degree to radians

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.