Solve the linear equation: x + 3 + x - 8 + x = 55

The weight of an object in a particular scale is 175.2 lbs. the measured weight may vary from the actual weight by at most 0.1 lbs. what is the range of actual weights of the object

Write the expression in complete factored form. 5n_(c - 3) - n(c - 3) =

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).