Brainiest and 100 points! An expert predicts that 10% of the voters between 18 and 25, 40% will be between 26 and 64, and 50% will be 65 or older. Based on her predictions she can calculate the result of the election from the expression 0.1a+0.4b+0.5c where a, b, and c are the decimal forms of the ratio of people supporting the bond issue in the three groups, Predict the percent of votes in favor of the bond issue?
Another question, what would be the ratios of data from the graph below?

The graph- 18-25 support- 79, opposed - 21
26-64 support- 55, opposed- 45
65 or older support 33, opposed- 67