My first impulse is to say you don't provide enough info with which to solve this problem. We need to know how many inches in the model correspond to 1 foot in the actual plane (that is, the scale factor). What is the scale factor here?
Given data:
The given expression is an=-3+5(n-1).
The given expression can be written as,

Thus, the explicit formula for the function is F(n)=-8+5n.
![[Hello,BrainlyUser]](https://tex.z-dn.net/?f=%5BHello%2CBrainlyUser%5D)
Answer:
2n
Step-by-step explanation:
You pack sandwiches for a mountain hike with your friends.
Each [ meaning 1] sandwich takes 2 slices of bread.
If each hiker eats one sandwich, and there are 'n' hikers
Thus, to find the number of breads used for 'n' hikers, we multiplied 2 by n
Hence, the expression will be 2n
[CloudBreeze]