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:
im not sure because im not good at these question but ill let you know when i figure it o
the total weight of the screws and nails is 
pounds
Answer:
if his car-wash job gives him $400 then he should only work 8 hours walking dogs to reach 520. Though it says to earn 'more than $520' so maybe 9hrs?
Step-by-step explanation:
He already has $400, which leave $120. 120 divided by 15 equals 8.
Answer:0.0757
Step-by-step explanation:
10^4 equals to 10*10*10*10=10000
now 757/10000=0.0757
