Answer:
13
Step-by-step explanation:
If he read 9 books in january and read 4 more in july than he did in january then he read 13 books in july.
So the length of the arc is given by: l = r*theta, here theta is the intercepted angle in unit radian
So, 80 degrees = 80/360 * 2pi = 4/9 * pi
So l = r * (4/9 * pi), the constant ratio is 4/9 * pi
36! goodluck hope it good
4(1/2x7)=12 <=> x28/2=12
x=12*2/28=24/28=12/14=6/7
Answer:
I'm pretty sure it's number 2 although I think you meant milk spoiling and that's a chemical change
