Answer:
Rotation of a point through 180°, about the origin when a point M (h, k) is rotated about the origin O through 180° in anticlockwise or clockwise direction, it takes the new position M' (-h, -k)
Step-by-step explanation:
IDK if this helped you out
If 105 customers were the total, and 35% prefers cake, we must calculate 35% of 105, then we must do 105 multiplied by 35%, we can doit transforming the 35% in the fraction notation:
![35\%=\frac{35}{100}](https://tex.z-dn.net/?f=35%5C%25%3D%5Cfrac%7B35%7D%7B100%7D)
And the multiplication
![105\cdot\frac{35}{100}=36.75](https://tex.z-dn.net/?f=105%5Ccdot%5Cfrac%7B35%7D%7B100%7D%3D36.75)
Therefore, if we round it to the nearest whole number, the number of customers that prefer cake is 37.
37 customers prefer cake.
Y=(1/2)x cause the constant variation is 1/2