Answer:
The equation is 
whose solution is 
Step-by-step explanation:
Let us call 
the number of minutes the phone is used over 200 minutes, then we have
<em>(this says monthly bill of $40 plus the cost of phone usage over 200 minutes must equal $58 )</em>
This equation can be used to solve for u as follows:
Answer:
20 feet
Step-by-step explanation:
I believe that since it is an equilateral triangle, all sides are equal, making 20=20
Equivalents fractions for 7/4:
7/4, 14/8, 21/12, 28/16, 35/20, 42/24, 49/28, 56/32, 63/36, 70/40, and so on ...
Example:
7/4 * 2/2 = 14/8
7/4 * 3/3 = 21/12
7/4 * 4/4 = 28/16
7/4 * 5/5 = 35/20
7/4 * 6/6 = 42/24 and so on.......
well, 84 divided by 3 is 28 and if you check that by multiplying 28 with 3 you get 84 so its 28
