The universal set in the diagram is the set of integers 1-15. place the integers in the correct place on the venn diagram. A and B is 1,5,3,and 15
B and C is 9
The multiples of three are 6 and 12
to the left of bubble C is 14 and 8
To the right of bubble C is 4 and 10
and in the top right corner is 2.
Hope that helped, its correct on edge.

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

5+2x=a

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i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.