How do I subtract a fraction and a whole number? Please explains step by step to get marked as brainliest

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Mon wants to make 5 lbs of the sugar syrup. how much water and how much sugar does he need… …to make 5% syrup?

Aquadrilateral has exactly 3 congruent sides davis claims that the figure must be a rectangle why is his claim incorrect.