0.4(20-10m)+ 2.5-2m-12.5

Need me know if option a,b,c are wrong so ik its d

The next model of a sports car will cost 14.5% less than the current model. the current model costs 53000. how much will the price decrease in dollars?

Using matlab: (a) use two methods to create the vector x having 100 regularly spaced values starting at 5 and ending at 28. (b). use two methods to create the vector x having a regular spacing of 0.2 starting at 2 and ending at 14. (c) use two methods to create the vector x having 50 regularly spaced values starting at −2 and ending at 5.