Writing an observation paper about children.
so i'm supposed to observe 2 children (not interact) and discuss difference and similarieites in my observation and include a discussion on how observations apply to a relevant theory of psychology.
it has to be a theory, not just a concept
use ciccarelli psychology 3rd edition

ples give some theories and some concepts and stufff

How can firms use marginal analysis to determine the price of a product? a) profit maximization can occur when the marginal cost exceeds the marginal revenue. b) the total cost of production can determine the individual unit price of a product. c) marginal analysis can be used to determine at what price profit maximization occurs. d) firms can calculate the marginal cost of a product and set the price lower than the cost.

Gretta needs a $300,000 mortgage and is offered two choices. the monthly payments for the fixed rate and predicted payments for the arm are shown. adjustable rate mortgage year monthly payment 1-15 $1,610.46 adjustable rate mortgage year monthly payment 1-5 $1,520.06 6-15 $1,728.54 what is the difference between the total costs of the mortgages rounded to the nearest hundred? $8,700 $1,700 $15,800 $5,000

Idon’t understand 8. plz ! we are finding the area of polygons. thx in advance!