Answer:

Step-by-step explanation:
Given that the change is -13/10 in 10 seconds
Here, you can write this statement as;
10s = -13/10
30s=?----------------perform cross-multiplication
(-13/10 * 30 ) /10

Basically just do the problem backwards.
72÷9=8
72÷8=9
Answer:
Radius=4 units
Centre= (0,-10)
Step-by-step explanation:
Given equation of circle is x^2 +(y-10)^2=16
Comparing it with (x-h)^2 +(y-k)^2 = r^2 ,we get,
r=4
Since, centre of a circle=(h,k)=(0,-10)
Answer:
1/4=0.25
Step-by-step explanation:
Rocky will earn $4 as extra money that week. Hope it help!