Which expression is equivalent to 6a(5+d)? a. 30a + (6a · d) b. 30a + 6ad c. (6a · 5) + ( 6a · d) d. 30ad e. 11atd

B

Step-by-step explanation:

Myself, I'd pick B. It is uncluttered by unnecessary brackets and reduced to its final answer, but that does not mean I am correct. A is correct as well 6ad = 6a*d.  C is also correct for the same reason. D is incorrect  and incomplete. E is a nightmare.

I'd pick B but don't be surprised if it is A or C.

hi,

3. 12.15, you are correct.

4.2.01, your first digit is correct,

hope this !