The ceiling in your building is 12 feet 6 inches high. the top of a table is 3 feet 9 inches from the floor. how far is the top of the table from the ceiling?

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.

For the inequality |c| < |d| to be true, which of the following must be true?

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /