Answer:
A. 3
Step-by-step explanation:

REMEMBER to MULTIPLY FIRST!!
21 / 7 = 3
Answer:
There is a 50% probablity that it will land on 1. There is a 30% chance it will land on 5.
Step-by-step explanation:
R^2/2(pi/180*D-sin(D)) is the formula so 6^2/2(pi/180*120-sin(120)) is the problem which comes to about 22cm^2
3,190,000 is 319 x 10^5 in scientific notation
12/10, 1.2, and any of the infinite multiples of the fraction such as 24/20, 120/100 etc...