17. winnie wrote the following riddle: l am a number between
60 and 100. my ones digit is two less than my tens digit. i am
a prime number.
part a
what number does winnie's riddle describe? explain.

The long jump record, in feet, at a particular school can be modeled by f(x) = 19.6 + 2.5ln(x + 1) where x is the number of years since records began to be kept at the school. what is the record for the long jump 11 years after record started being kept? round your answer to the nearest tenth.

Which of the following parabolas opens up?

Solve for x and select the correct answer