Mary spent $26.00 on writing utensil pens cost $4.00 and pencils cost $1.00 if she bought a total of 8 items then how many of each kind did she buy

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