Step-by-step explanation:
$27.72-$23.22=$4.50
$4.50÷$0.18=25
x=25
So Tim sent 25 messages last month.
Answer:

Step-by-step explanation:
Given that,
The height of a cell tower, P = 70 m
The tower casts a shadow of 45 meters on the ground.
We need to find the angle of elevation of the shadow to the top of the cell tower. We can use trigonometry to find it.

Put all the values,

Hence, the angle of elevation is equal to
.
The x-coordinate changes from +3 to -3. The y-coordinate stays the same.
Answer:
C and E
Step-by-step explanation:
Hi there!
To solve this problem, we need to divide 324 by 24:
324 / 24 = 13.5
Since you can't make half of a group, the answer is 13 groups.
Hope this helps!