Is all of this correct?

Yes

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:

Area of a rectangle (A) = width x lenght

the measures of the front wall before the door was cut:

length: 4 ft

width : 3ft

area of the door ( 2 x2 )

The area that Mickey needs to paint is equal to the area of the wall before the cut, minus the area of the door:

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.

207/8 is the right