If D=2x^2-x-5 find an expression that equals -1D as a trinomial in standard form A. X^2 - 3x - 15

B. 6x^2 - 3x - 15

C. 3x^2 - 3x + 15

D. -2x^ + x + 15

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

Val and tony get paid per project. val is paid a project fee of $44 plus $12 per hour. tony is paid a project fee of $35 plus $15 per hour. write an expression to represent how much a company will pay to hire both to work the same number of hours on a project.