X1 2 3 4 5 y 3 6 9 12 15 given the table, write an expression for the function, and describe what it does. a) y = 2x. y is double x. b) y = 3x. y is triple x. c) y = 2x+1. y is twice x plus 1. d) y = 2x-1. y is twice x minus 1.

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your

In a rectangle klmn, km = 6x + 16 and ln = 49. find the value of x

Identify the percent of change as an increase or a decrease. 75 people to 25 people response - correct increase decrease question 2 find the percent of change. round to the nearest tenth of a percent.