Fb is between a and c, ab=6y-2, bc=11y+5, and ac=20y-3. find the value of y, ab, bc, and ac.

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

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?

Point r divides in the ratio 1 : 5. if the coordinates of e and f are (4, 8) and (11, 4), respectively, what are the coordinates of r to two decimal places?