Solve for r.

–7r = –8r − 20

r =

Janet is mixing a 15% glucose solution with a 35% glucose solution. this mixture produces 35 liters of a 19% glucose solution. how many liters of the 15% solution is januet using in the mixture? a. 25 liters c. 28 liters b. 7 liters d. 10 liters

What are the domain and range of the function? f(x) = -4 (sqrt)x

Find the quotient with the restriction.