Answer:

Step-by-step explanation:
Let
be that number.





21 is the number.
Answer: b
7(b-1)/b less than or equal to 0
Step-by-step explanation:
Answer: this will help you with this qustion and others involving graphs desmos . com
Step-by-step explanation:
To answer this first we set up a proportion and then solve. Lets do it:-

Cross Multiply:-
80 · 4 = 320
Divide:-
420 ÷ 12 = 60
So, 180 ears of corn are for
$60.Hope I helped ya!!