What is the common difference or common ratio of the sequence 3, 7, 11, 15, 2 4 6 8

The common difference;
3,7,11,15
The common difference is 7-3 or 11-7
=4

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.