If I knew the answer I would helped u b,

ut I'm only in 7th grade but I will try
Answer:
LCM is 504. GCF is 42
Step-by-step explanation:
part A:
company a
30m+15
m= matress
company b
28m+21
m=matresses sold
part B:
company a
30(6)+15
195$
company b
28(6)+21
189$
company B charges less
part C:
company a
30(3)+15
105$
company b
28(3)+21
105$
there is no change at all so you do not save anything.
Answer:
20
Step-by-step explanation:
<em>5+5+5+5</em>
No order of operations is what you might know as Pemdas ,number of Operations is something iv'e never heard of.