1)

3)

notice the rate "r"... now, is in decimal format, as you saw on 1) is just r/100 so 1.6% was really 1.6/100 or 0.016 anyhow
to get the percentage form, just multiply it by 100
The answer is c to the question
The answer is 8+1 which is D
Step-by-step explanation:
Remember that 6/6 = 1, so we can use that knowledge to our advantage.
1/2 + 1/2 is one of them, because 1/2 + 1/2 = 2/2 = 1.
1/4 + 1/4 + 1/4 + 1/4 is one of them, because they equal 4/4 = 1.
1/3 + 1/3 + 1/3 is one of them, because they equal 3/3 = 1.
Which Numbers or do you need help on all of them