Compound Inequalities Word Probems - Examples & Practice

Anna has a coupon at a store where if she buys at least $\$30$ she will receive a $20\%$ discount from her purchase. But she only has $\$60$ in her bank account to spend so she can't go over. What is the range she can spend (before the discount is factored) where she gets the discount but won't spend over the amount in her bank account?