Answer: 60% = 60/100 = 60 ÷ 100 = 0.6. 100% = 100/100 = 100 ÷ 100 = 1.
Step-by-step explanation: Decrease number by 60% of its value. Percentage decrease = 60% × 150 New value = 150
Answer:

so B is the answer 
Step-by-step explanation:

45/50 and 46/50 could be one of the options of 4.5/5 and 4.6/5
Sorry, I'm no help because I have no idea how to do those!