If you have several different sized pizzas, you can compare their areas. So the area of a pizza is the length of the crust (circumference) divided by two times the distance from the edge to the middle (radius). Mathematicians use a special number called pi to calculate the circumference of a circle.
Answer:
Each will receive
of the cake.
Step-by-step explanation:
Let the amount of cake = c
Lisa, Juan and Isaac are the persons who are sharing half of a cake equally.
Number of persons = 3
Part of the cake shared = 
Fraction of the cake shared by each = 
=
= 
Therefore, fraction of total cake shared by each member will be
of the total amount of cake.
Answer:
per hour
Step-by-step explanation:
step 1
Find the total hours
(37 hours/week)*(52 week)=1,924 hours
step 2
Divide the annual salary by the total hours

The percent of increase is 25 percent
Answer:
3(p+4m) + 8
Step-by-step explanation:
Factor out a 3 for the first two terms, 3(p+4m) and add 8 like usual