Answer:
B.) a+a+a+a+b+b
Step-by-step explanation:
Given the expression 4a + 2b
We are to find the equivalent expressions
4a means the sum of 'a' in four places
4a = a+a+a+a
2b means the sum of 'b' in two places
2b = b+b
Combining both expressions
4a + 2b = a+a+a+a+b+b
Hence the correct option is B