Arecipe requires 5.5 teaspoons of sugar to make a cheesecake. which equation shows the number of teaspoons of sugar, y, needed to make x cheesecakes?
x = 5.5y
y = 5.5 + x
y = 5.5x
x = 5.5 + y

Find the area of an equilateral triangle with a side of 6 inches

If y varies directly as x2 and y=6 when x=6, find the constant of variation.

Due to bad planning, two of the local schools have their annual plays on the same weekend. while 457 people attend one, and 372 attend the other, only 104 people were able to attend both. how many people went to at least one play?