Answer:
3) 0.72
Step-by-step explanation:
The probability that tomorrow the Fed will cut interest rates (P(F)) OR the DJIA will go up (P(D)), is the sum of each event's individual probability minus their joint probability (Fed cutting interest rates AND the DJIA will going up, P(FD))

The probability that tomorrow the Fed will cut interest rates or the DJIA will go up is 0.72.
Answer:
-4
Step-by-step explanation:
Do (y1-y2)/(x1-x2) so (3-(-5))/(0-2)
8/-2=-4
If the sale price is 30%, you turn that into a decimal and it will be .3. now you multiply the discount by 39 and it will get you 11.7. 11.7 is the money of discount so now all you have to do is subtract 11.7 from 39 and you shall get 27.3.