Please help.

Solve the System of Equations by Graphing

y=4

3x+4y=4

graph below

Step-by-step explanation:

Graph in image below

D

Step-by-step explanation:

In this question, option D is the correct answer. Firstly, we were made to know the amount of money she has to be $120. Now, to properly account for the 20% discount and also the 6% after sales tax, we need to know actually the amount the bike costs.

If we are furnished with the information about what the bike cost, we can then proceed to adequately find the values of the discount and the value of what the after sales tax would be. It is after this that we can now make any comparison with the money she has at hand and thus consider other options in the question.