How many solutions does 3.2p-2.5+2.1p=5p-7/2

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

You got a job selling magazines door-to-door. you are paid $100 per day plus $1.50 for each magazine you sell. which recursive formula models this situation?

You buy five cds at a sale for $5.95 each. write an expression for the total cost of the cds.then use the distributive property and mental math to evaluate the expression.