How do I solve these questions?

225/100 of last years cost. write each fraction as a decimal and as a percent

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

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