Help me with this please

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.

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Scale factor of 2 is used to enlarge a figure as shown below the area of is 18 in.²