Help me please I put an atachment

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Explain why the factor 1.5 is broke. into two numbers in the model.

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points