Answer:
=2.1 ×8.4×4
=70.56
kkbj
18750
Step-by-step explanation:
answer is A and it feels wierd to answer this
30a + 18b
6(5a+3b)
Just multiply the six in both numbers
( 6x5a) + (6x3b)
= 30a +18b
Hope this helps =)