Write the equation of the line passing through the point (2,-1) with a slop of -3

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c

The cost of a taxi ride includes an initial charge of $2.00. if a 5km ride cost $6.00 and a 10km ride cost $10.00, determine the cost of a 15km ride.