Explain how using equivalent ratios is like adding fractions with unlike denominators

The expression 1.08s + 1.02b1.08s+1.02b predicts the end-of-year value of a financial portfolio where ss is the value of stocks and bb is the value of bonds in the portfolio at the beginning of the year. what is the predicted end-of-year value of a portfolio that begins the year with \$200$200 in stocks and \$100$100 in bonds?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums, 28 play drums, 18 play the guitar. what is the probability that the applicant who gets the job plays drums or guitar?