<human>:  On Friday, Markeesha sold 30 boxes of crackers for her scout troop's fundraiser. On Saturday, she sold twice as many as on Friday. On Sunday, she sold 15 fewer than Saturday. How many boxes did she sell over the three days?
<bot>: How many boxes did Markeesha sell on Saturday? ** On Saturday, she sold 2*30=<<2*30=60>>60 boxes.
How many boxes did Markeesha sell on Sunday? ** On Sunday, she sold 60-15=<<60-15=45>>45 boxes.
How many boxes did Markeesha sell over the three days? ** She sold a total of 30+60+45=<<30+60+45=135>>135.
#### 135