a) 0.00036 b) 35.83 c) 22.5
Work Step by Step
a )Zeroes before significant figures in a number less than zero are insignificant. 5 rounds up, so the previous 5 becomes a 6. b) 4 does not round up, so the previous 3 remains. c) 5 rounds up, so the previous 4 becomes a 5.