First bring them to common denominator.
There are 27 boys on the playground.
Step-by-step explanation:
No. of Pre-K children = 34
No. of kindergarten children = 29
Total no of children = 29+34 = 63
Ratio of boys to girls = 3:4
Total ratio = 3+4 = 7
Therefore,
boys proportion = 
Total number of boys = 

There are 27 boys on the playground.
Keywords: Proportion, division.
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Answer: 3+3=9
⇔
Step-by-step explanation: three fingers to start add three fingers total of nine
I hope my explanation helps
Answer:
124 tiles
Step-by-step explanation:
2(20+40)
2(60)
120+4=124