Answer:
[tex] \red{ \sf \: B) \: 7b + 3r}[/tex]
Step-by-step explanation:
Given expression,
→ (3b + 2r) + (4b + r)
Now we have to,
→ Simplify the given expression.
Let's simplify the expression,
→ (3b + 2r) + (4b + r)
→ 4b + 3b + 2r + r
→ (4 + 3)b + (2 + 1)r
→ 7b + 3r
Hence, the option (B) is correct.
