What is the simplified form of 1.7m^2+6.5n-4n+2.5m^2-n

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

How many real-number solutions does the equation have? -4x^2 + 10x + 6 = 0 a. no solutions b. two solutions c. infinitely many solutions d. one solution