What number or fractions are between 2/3 and 1 1/3

Let r = 3. what is the value of r + 58?

12. the amount of money in a bank account decreased by 21.5% over the last year. if the amount of money at the beginning of the year is represented by ‘n', write 3 equivalent expressions to represent the amount of money in the bank account after the decrease?

If x = -2, then x 2-7x+10 equals a. 0 b.20 c.28