craig spent $27 to buy 3 calendars. the next day, he spent another $18 for more calendars. Each calendar cost the same amount. How many calendars did craig buy?

She bought 5 calendars.

Step-by-step explanation:

Let Craig bough x calendars.

The cost of 3 calendars is $27.

Hence, the cost of 1 calendar is 27/3 = $9

Now, it has been given that she spent another $18 for more calendars. And we have calculated that cost of 1 calendar is $9.

Hence, in $18 she could buy 2 more calendars.

Therefore, the number of calendars she bought is given by

3 + 2

= 5

She bought 5 calendars