100 points plus brainliest to the one who helps me: Graph a line with given description:

through (1,3) and perpendicular to the line through (-1,-1) and (2,0)

Timmy uses 1 1 2 cups of sugar for every 2 gallons of lemonade he makes. how many cups of sugar would timmy use if he makes 13 gallons of lemonade?

Mr.walker is looking at the fundraiser totals for the last five years , how does the mean of the totals compare to the median?

Which number is located at point a on the number line? a number line is shown from negative 10 to 10 with each interval mark on the number line representing one unit. point a is labeled one interval mark to the right of negative 5.