Activity # 1 Which algebraic expression is correct? Choose between A or B. 1. A number increased by four is twelve. A, n - 4 = 12 B. n+4 = 12 2. A number decreased by nine is equal to eleven. A. n+ 9=11 B. n-9=11 3. Five times a number is fifty. A. 5(n) =50 B. 5/n =50 4. The quotient of a number and seven is eight. A, n(7) = 8 B. n/7 = 8 5. Six times the sum of a number and ten is twenty a A. 6(n + 10) = 20 B. 6(n-10) = 20​