Answer:
32 calendars
Explanation:
Make an inequality
Let x represent calendars
8x+350 > 600
Solve, first by subtract 350 from both sides
8x>250
Divide by 8 on both sides
x> 31.25
They must sell at least 32 calendars, because if they only sold 31, they would not meet their goal.
Hope this help! :)