Answer:
hello the correct answer is y=30x+20
Step-by-step explanation:
It is the origin of a graph; where the x-axis and y-axis intercept .
Rectangle Formula: a = lw (Area = Length x Width)
Trapezium: A= a+b/2h (Area = Area + Base / 2 x h)
I hope this helps. :)
See attached for the work