Answer:
$75.
Step-by-step explanation:
We have been given that Grammy gave the server a $15 tip. The tip was 20% of the cost of dinner.
Let x be the cost of Grammy's dinner. We need to find x such that 20% of x equals to 15. We can represent this information as:



Therefore, the cost of Grammy's dinner was $75.
Answer:
c
Step-by-step explanation:
I did this question before
Answer is C hope this helps
Answer:
Step-by-step explanation:
Point slope form: y - y1 = m(x -x1)
![y - [-16] = \dfrac{1}{2}(x - [-3] )\\\\y + 16 = \dfrac{1}{2}(x + 3)\\\\\\y + 16 = \dfrac{1}{2}x + \dfrac{3}{2}\\\\y =\dfrac{1}{2}x+\dfrac{3}{2}-16\\\\y=\dfrac{1}{2}x +\dfrac{3}{2}-\dfrac{32}{2}\\\\\\y=\dfrac{1}{2}x - \dfrac{29}{2}](https://tex.z-dn.net/?f=y%20-%20%5B-16%5D%20%3D%20%5Cdfrac%7B1%7D%7B2%7D%28x%20-%20%5B-3%5D%20%29%5C%5C%5C%5Cy%20%2B%2016%20%3D%20%5Cdfrac%7B1%7D%7B2%7D%28x%20%2B%203%29%5C%5C%5C%5C%5C%5Cy%20%2B%2016%20%3D%20%5Cdfrac%7B1%7D%7B2%7Dx%20%2B%20%5Cdfrac%7B3%7D%7B2%7D%5C%5C%5C%5Cy%20%3D%5Cdfrac%7B1%7D%7B2%7Dx%2B%5Cdfrac%7B3%7D%7B2%7D-16%5C%5C%5C%5Cy%3D%5Cdfrac%7B1%7D%7B2%7Dx%20%2B%5Cdfrac%7B3%7D%7B2%7D-%5Cdfrac%7B32%7D%7B2%7D%5C%5C%5C%5C%5C%5Cy%3D%5Cdfrac%7B1%7D%7B2%7Dx%20%20-%20%5Cdfrac%7B29%7D%7B2%7D)