Answer: 1) 7.51
2) 7.5
Explanation:
To round a number, the basic rule is if its greater than or equal to halfway there, you round up (last digit ending in 5-9) and if its less, round down (last digit ending in 1-4). You simply apply this rule to the A. Since it isn't quite halfway to .52, you stay down and round it to 7.51. Since the last digit is lower, you also round it down to 7.5.