28. Enter your answer as an integer or a decimal if there is a single answer box OR as a fraction if there are two separate boxes: one for the numerator and one for the denominator.
The cost of groceries rose by a total of 12% from January to July. The Smith family spent $400 on groceries in January. If the month-to-month increase was linear, how many dollars did the Smith family spend on groceries in March?
| 정답 확인 | 맞췄어요 O | 틀렸어요 X |