Can some one answer. i have a picture. it's only one problem

The perimeter of a rhombus with a side of 6 is 24

Asequence is defined recursively by the formula  f(n  +  1)  =  f(n)  +  3 . the first term of the sequence is  –4. what is the next term in the sequence? –7–117

Draw a scaled copy of the circle using a scale factor of 2