Answer:
area of the trapezoid=1/2(7+12)×5
=47.5cm
If we rewrite it as y=mx+d (which can be taken from here from subtracting ax and c from both sides, then dividing b, resulting in y=(-a/b)(x)-c/b. We can then substitute -a/b for m and -c/b for d), if d=0, then we have m as a constant and as we add a specific number to y (that number being m) every time the x value increases by 1, it therefore forms a straight line. If d is not 0, then we simply add d to every single number - this is still a straight line due to that we still add a specific number to y every time x increases by 1 every single time
40.0*10 is the answer
actually it is 400 but u want in decimal so it is 40.0*10
8/40=?/120 40x3=120 8x3=24 so 24 pages or 24/120
