D = m / V
Multiply both sides by V
dV = m
Divide both sides by d:-
V = m /V Answer
Because 42 is a multiple of 2
Yes it is in scientific notation
To add fractions, the denominators should be the same. 2/5 is the same as 4/10 (if you multiply the numerator and denominator by 2). So 4/10 + 3/10 = 7/10.
