Astack of 2/5 inch wide sheetrock has a height of 16 4/5 inches. how many sheets of sheetrock are in the stack?

Write a function for a rotation 90 degrees counter clockwise about the origin, point 0

Dean and karlene get paid to write songs. dean is paid a one-time fee of $20 plus $80 per day. karlene is paid a one-time fee of $25 plus $100 per day. write an expression to represent how much a producer will pay to hire both to work the same number of days on a song.

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.