68 students increased by 125% is
68 + 68(1.25)
68 + 85 = 153
hope it helps
It will be 90 days until they are at the movies again.
In constructing the equation, you need to know the following:
1. What don't we know? How many minutes you must talk to have the same cost for both calling plans. So, let x be the number of minutes.
2. What do we know? Plan 1 charges $17.50 per month plus $0.17 per minute used and Plan 2 charges $32 per month plus $0.07 per minute used.
So the equation must look like this: 17.50 + .17x = 32 + 0.07x
Solving the equation:
1. Multiply both sides by 100
(100) 17.5 + .17x = 32 + 0.07x (100)
1750 + 17x = 3200 + 7x
2. Subtract 1750 from both sides
1750 + 17x - 1750 = 3200 + 7x - 1750
17x = 7x +1450
3. Subtract 7x from both sudes
17x - 7x = 7x + 1450 - 7x
10x = 1450
4. Divide both sides by 100
10x / 10 = 1450/10
x= 145 minutes
145 minutes is the number of minutes you must talk to have the same cost for both calling plans.
you can put both sides of the equation to the 4th power
![( \sqrt[4]{d - 15}) ^{4} = (2)^{4}](https://tex.z-dn.net/?f=%28%20%5Csqrt%5B4%5D%7Bd%20-%2015%7D%29%20%5E%7B4%7D%20%20%20%3D%20%282%29%5E%7B4%7D%20)


Answer:
On a number line, this would mean the dots start at -3 and go left to infinity. it would mean the other dot starts a 2 and goes right to infinity.