What is the surface of the triangluar prism shown below

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.

The mean of 10 values is 19. if further 5 values areincluded the mean becomes 20. what is the meanthese five additional values? a) 10b) 15c) 11d) 22

Multiply and simplify. 2x^2 y^3 z^2 · 4xy^4 x^2 i will mark you brainliest if right. show how you got the answer, !