B = 120 because it is in your sum
The rule of the function is to multiply the input by 3, since one yard is equal in length to three feet.
So, if the input is 15.4, the output will be

Use Desmos it helps you with questions like that
Answer:
A) la que cuesta $1.89
B)$5.68
C)$5.68
Step-by-step explanation:
Answer:
14.2857% decrease
≈ 14.3% decrease
Step-by-step explanation:
nearest tenths : 14.3%
nearest hundredths : 14.29%
nearest thousandths : 14.286%
I hope my answer is correct, I provided more options because I wasn't sure what nearest percent wanted.
Hope this helps!