I just want to talk put the bowling ball down

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.

Can someone me and do the problem plz so i can understand it more better

In the diagram below,abc is congruent to dec what is the value of x