A family buys 4 airline tickets online. The family buys travel insurance that costs ​$18 per ticket. The total cost is ​$688. Let x represent the price of one ticket. Write an equation for the total cost. Then find the price of one ticket.

What number produces an irrational number when multiplied by -1.25

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?