#### Answer

Conjecture is correct.

#### Work Step by Step

3 + 6+9+12+15+18 = $\frac{18 *7}{2}$
L.H.S = 3 + 6+9+12+15+18
= 63
R.H.S= $\frac{18 *7}{2}$ = $\frac{126}{2}$ = 63

Published by
Pearson

ISBN 10:
0321867327

ISBN 13:
978-0-32186-732-2

Conjecture is correct.

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