Enzo has two piles of buttons. In each pile there are red and blue buttons. In one pile, the ratio of the number of red buttons to the number of blue buttons is 1:2. In the second pile the ratio of the number of red buttons to the number of blue buttons is 3:5. If Enzo has a total of 20 red buttons, how many blue buttons are there?

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18. g

20. h 30 degree turn.

21. d 90 degree angles

and also 19 is a. a sphere not a cirlcle

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when studying polynomials, you often hear the terms zeros, roots, factors and x x the multiplicity of a zero is important because it tells us how the graph of the let's look at the graph of a function that has the same zeros

step-by-step explanation:

70

step-by-step explanation:

2*5=10

4*15=60

60+10=

70

1,918

step-by-step explanation: