Question

A farm stand sold 12 ears of corn for 4$ .the farm stand sold 180 ears of corn at the same rate

Answer 1

If you want to know how much is the price for 180 ears you can say : 
4$/12 = ?/180 ⇒ ? = 180 * 4 /12 = 60 $ :))
i hope this is helpful 
have a nice day 

Answer 2

To answer this first we set up a proportion and then solve. Lets do it:-

$\frac{4}{12}= \frac{x}{80}$

Cross Multiply:-

80 · 4 = 320

Divide:-

420 ÷ 12 = 60

So, 180 ears of corn are for $60.

Hope I helped ya!!