A plumber charges $55 for a service call plus $35 per hour. If The plumbers bill was $160, how many hours was he there?

Statement: if two distinct planes intersect, then their intersection is a line. which geometry term does the statement represent? defined term postulate theorem undefined term

Find the roots of the equation below. x^2 - 6 + 9 = 0

Which expression will have the same sum as 3_8 + 1/4?