HELP ME !! find the value of x​

Suppose the probability of selling a car today is 0.28. find the odds against selling a car today.

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?