12. flying lessons on weekdays cost m dollars per hour. flying lessons on weekends cost 1.2m
dollars per hour. the expression 9m +3 (1.2m) represents the total dollar amount that maren
spent on flying lessons. what does the 9m in the expression represent?
a. the cost of all the flying lessons that maren took on weekends
b. the cost of all the flying lessons that maren took on weekdays
c. the number of hours of flying lessons that maren took on weekdays
d. the number of hours of flying lessons that maren took on weekends

fourth month

step-by-step explanation:

it is the one with the most keychains.

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

c. 6tan80

step-by-step explanation: