We know he pays 720 in a year so i divide that by 12 so... 720 ÷ 12 = 60 so he pays 60 each month for his telephone service since thats only 1/20 of his earning what I do is 60 × 20 and we get 1200 so craig makes 1200 a month hope that helps!
<span>You can remember by the acronym: PEMDAS which stands for p<span>arenthesis, exponents, multiply, divide, add, subtract So you start with anything in parenthesis </span></span>
