I’m pretty sure it would take 2hrs but I’m not completely sure but I think
1g is equal to 0.001kg
678g = 0.678kg
(678 x 0.001 = 0.678)
A) -4
d) -3.1
for these questions you have to subtract the two numbers since they have different signs and the biggest sign is the ending sign
Start with adding the feet: 6+4+5=15
then add the inches: 5+6+7=18
18 inches= 1 foot and 6 inches
So its 16 feet and 6 inches