Answer:
Some double facts are : 7-4=3
3+4=7
7-3=4
Step-by-step explanation:
Hope it helps <:)
~TheGirlUnderYourBed
Answer:
The circumference of the clock is 
Step-by-step explanation:
we know that
The circumference of a circle (clock) is equal to

In this problem
The long of the minute hand is the radius of the circle
so

substitute
-----> exact value of the circumference
Answer:
1:18
Step-by-step explanation
18*2=36
18*3=54
so the propotion is 1 to 18, for every 1 hour 18 dollars are added