Answer:
A) 240 m^3
Step-by-step explanation:
Since y=3x+15
sub 3x+15 for y in other equation
2x+3(3x+15)=1
2x+9x+45=1
minus 45
11x=-44
divide 11
x=-4
sub
y=3x+15
y=3(-4)+15
y=-12+15
y=3
(-4,3)
You’d do 16x5 and that would give you 80in^2 your welcome! Hope this helps!

Multiplying a positive and a negative equals a negative: (+)×(-)=(-)

Calculate the product
