How much pure acid should be mixed with 6 gallons of a 20% acid solution in order to get a 40% acid solution

The expressio (2x^5+7x^3) - (5x^2-4x^3)

If you were born in 1972 how old would you be in 2017

lucas is making accessories for the soccer team. he uses 789.69 inches of fabric on headbands for 29 players and 4 coaches. he also uses 259.26 inches of fabric on wristbands for just the players.

If the area of a circle is 121π square units, what is its diameter? If the circumference of a circle is 20π units, what is its area?

What is disk used on a place value chart

If after 4 years of insuring 100 people, 9 motorcycle drivers had an accident, where does the company stand after money has been taken in and paid out for this group of 100 insured people?

If the quotient is 12 and the dividend is 288 then what is the divisor

How many solutions are there for the absolute value equation "| 16 + t | = 2t - 3"?

What does 5.74 round to

The band booster club sells beverages for $1.48 and candy for $1.64 at home games. their goal is to have total sales of $231.64 for each game.