A student has started a lawn care business. He charges 15 per hour to mow lawn sand 20 per hour for gardening. Because he is still in school, he is only allowed to work for at most 20 hours per week. His goal is to make at least $300 per week.

C) Create a system of equations or inequalities that models the situation. Define the variables you use.

D) The graph shows one of the relevant equations in this situation. Draw the graph of the other relevant equation.

__tx= 60 inches. __cause it's equal to vt

First locate the turning point (vertex) of the graph. which is at the coordinates x=5 and y=9 or (5; 9).to determine whether it's a maximum or mininum value, you have to discern whether the vertex's y-value is the highest value or lowest value the graph can reach. since the vertex's y-value, 9 is the highest value the graph can reach, it will be a maximum.another basic way to determine whether the vertex's value is max or min is to see if the graph is smiling or sad. if it's smiling, the turning point/vertex would be a minimum, while a sad parabola would have a maximum y-value at the vertex.