Answer:
36
Step-by-step explanation:
area of a rectangle is length x width, so 12 x 3 = 36
Answer: Step-by-step explanation:
25y + 150x = 250 (÷25)
y+6x=10
y=10-6x
example x=1 y=4
8x + 12 = 5x -21
8x-5x=-12-21
3x=-33
x=-33/3
x=-11
Hope it helps