Answer:
A , B , D , F
Step-by-step explanation:
70 times .9 is 63 so 90 minus 63 is27 so it was $27
15 and 450 because you divide and multiply until you get the same number
23:8 is the simplest form. However, you can put 5.75:2 or even 2.86/1 if you are looking for the absolute simplest
