How mini groups did he make? how many were in each group

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

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.

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with