Need Help ASAP

Nora is 12 years away from being a century old. How old is Nora?

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

The box plots show the average speeds, in miles per hour, for the race cars in two different races. which correctly describes the consistency of the speeds of the cars in the two races?

Write the percent as a fraction or mixed number in simplest form. 0.8%