Answer:
20:90
Step-by-step explanation:
Her error was that she misplaced the numbers
-30x ≥ -300
its supose
to be -30x ≥ 200
<u>Answer:</u>
<u>Steps:</u>
SA = 2(L×W) + 2(H×L) + 2(H×W)
given:
L = 9 cm
W = 4 cm
H = 7 cm
SA = 2(9×4) + 2(7×9) + 2(7×4)
SA = 2×36 + 2×63 + 2×28
SA = 72 + 126 + 56
SA = 254 cm²
FIND THE LENGTH YOURSELF
min at x = -3
steps are in the pic above.
