Peanuts sell for $3 per pound and raisins sell for $5 per pound. how much of each is needed to create 20 lb of a mixture that would sell for $3.50 per pound?

How many $20 bills do you need to have to make $280

At 6 1/2 cents per pound of string beans how much does 7 pounds cost

Gabriel determined that his total cost would be represented by 2.5x + 2y – 2. his sister states that the expression should be x + x + 0.5x + y + y – 2. who is correct? explain.