A2=2(a2-1-3)
A2=2(a1-3)
A2=2(0-3)
A2=-6
A3=2(a2-3)
A3=2(-6-3)
A3=2*-9
A3=-18
A4=2(a3-3)
A4=2(-18-3)
A4=-42
answer: 21$
step-by-step explanation:
$42 / $14 = 3 (ratio 3: 1)
$7 x 3 = $21
4.
it have the same area.brainliest