3times the difference between 4 twenty-fives and 3 twenty-fives

For which rational expression is -2 an excluded value of x?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Type the correct answer in each box. use numerals instead of words. if necessary, use / for the fraction bar. consider the given table.