Answer:
3( 3+5)
Explanation:
9 +15
Rewriting 9 as 3*3 and 15 * 3*5
3*3 + 3*5
Factor out 3
3( 3+5)S
if you need to no what 9+15 is it is 24
get a pis of paper and draw 15 dots and then you add 9 more dots and you have 24
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