I numbers it depends to what place you are rounding to. Like 100 you may be able to round by the hundredths or tens.
Answer:
$150
Step-by-step explanation:
50+25=75
since he spent another half 75 is the other half
so 75+75
150
1kg is 1000 grams
65 * 1000 is 65,000
so it is D.) 65,000g.