The graph below shows how the cost of gasoline changes over one month. According to the graph, the cost of gasoline decreases. A graph has time on the x-axis and cost on the y-axis. A line alternates between increasing, staying steady, and decreasing.
a.
always
b.
sometimes
c.
never

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

the bolded word " farsighted" could be replaced with visionary.

86

step-by-step explanation:

find the area of the triangle then multiply by 2 then add the area of the parollelegram multiplied by 2