Answer: 64 years old
Explanation:
Your grandma would be your dad's mom and since she is twice as old as your dad, she is 64. 32 x 2 = 64.
7x-3y=15 is the equation in standard form.
Since 19 is 76% of 25, we can assume that 76% of the people in the restaurant like the new menu. 76% of 227 is roughly 173. So about 173 people liked the menu that day. Hope this helps :)
1. is going to be triangle, (it looks like it should be equilateral)
2.rectangle
3.square
4. circle