How much tax do you pay? $0.30
How much of a tip should you leave? $1.20
What is the total cost of your meal, after tax and tip? $7.50
Sin(theta) = 4/5,
![cos^{2} (theta)=1-( \frac{4}{5})^{2} = 1 - \frac{16}{25} = \frac{9}{25}](https://tex.z-dn.net/?f=cos%5E%7B2%7D%20%28theta%29%3D1-%28%20%5Cfrac%7B4%7D%7B5%7D%29%5E%7B2%7D%20%3D%201%20-%20%20%5Cfrac%7B16%7D%7B25%7D%20%3D%20%5Cfrac%7B9%7D%7B25%7D%20)
We will switch it to formula:
The first one should be $178
The second one would be 8 quarters
His current balance is $321.34
She would have $110.00 but with penalty she would have $106.75
The x-intercept occurs when y = 0, so:
3x + 5(0) = 45
3x = 45
x = 15