I need help with this problem! I'll give brainlist! ​

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Jaxon has s packs of 8 crazy straws. he divided the crazy straws into 2 equal bags. now, he has 224 crazy straws in each bag. how many packs of crazy straws did jaxon start with?

Find the volume of the solid bounded by the plane z=0 and the paraboloid z=1-x^2 –y^2