Which of the following statements are true?
choose all answers that apply:
a. the equation represents a proportional relationship

b. the unit rate of change of y with respect to x is 0.4.

c. the slope of the line is 0.4.

d. a change of 2 units in 2 results in a change of 0.2 units in y.
e. a change of 3 units in 2 results in a change of 1.2 units in y.

The customer price index(cpi), which measures the cost of a typical package of customer goods,was 208.8 in 2011 and 244.1 in 2016.let x=11 corresponding to the year 2011 an estimate to cpi into 2013 and 2014. assume that the data can be modeled by a straight line and the trend to continue idenfinitely.use data points to find such a line and then estimate the requested quantities

20 ! brainliest ! add and simplify your answer.

Talia took the bus from her home to the bank and then walked back to her home along the same route. the bus traveled at an average speed of 40 km/h and she walked at an average speed of 5 km/h. to determine the time, x, that it took talia to walk home, she used the equation 40(0.9 – x) = 5x. the time of trip 2 is hours. the distance of trip 1 is km.