Why is 3:5 and 5:7 not equivalent??

Ratios

The sum of two numbers is 86, and their difference is 20. find the two numbers

Agroup of randomly selected members of the foodies food club were asked to pick their favorite type of food. the bar graph below shows the results of the survey. there are 244 members in the foodies.

Which of the following is closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265