About how many miles equal 10 kilometers round to the nearest tenth

What is the value of x? enter your answer in the box. photo attached.

Determine whether the quadrilateral below is a parallelogram. justify/explain your answer (this means back it up! give specific information that supports your decision. writing just "yes" or "no" will result in no credit.)

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.