Answer:
Choice C
Step-by-step explanation:

Hope this helps!
Answer:
a)
_b+_=_
6B+3=75
B)
He ordered 12 books
Step-by-step explanation:
so each book (b) costs $6. he payed $75 total including the $3 shipping price
That gets us:
6b+3=75
6b=72
b=12
Therefore, Tom ordered 12 books
Answer:
180
Step-by-step explanation:
Let the quotient be X
X/6= 30
cross multiply;
X=30×6=180
Answer:
none
Step-by-step explanation:
there's only ten cubes