Can someone help me do this worksheet? i have some answers but i don’t think any of them are right.

Can someone, me with this.i really need with this

Find the interior angle of a regular polygon which has 6 sides

The function c(n) below relates the number of bushels of apples picked at a pick-your-own orchard to the final cost for the apples. it takes as input the number of bushels of apples picked after paying an entry fee to an orchard and returns as output and returns as output the cost of the apples (in dollars)c(n) = 15n + 30which equation below represents the inverse function n(c), which takes the cost of the apples as input and returns the number of bushels picked as output