The answer if 7 years, if you multiply 2,000 by .02 it equals 40. so you divide 280 by 40 and get 7
We need an equation for this, theres no 'formula' for doing this (ignoring the quadratic formula, as that is a long-winded way of factorising a quadratic equation)
25%
since there are 4 books, and only one is a mathematics book, there is a 1/4 chance. in other words, 25%
22 is the answer to this math problem
Without the tip it was $60. If you are being asked to add the tip it will be $69
