Answer:
13
Step-by-step explanation:
7 packs x 5 cards in each pack given away = 35
there were 56 cards left
56 + 35 = 91 total cards
91 / 7 = 13 cards in each pack
Answer:
No, I don't think so; an equation must have an equal sign in it. Expressions, however, do not have equal signs in them. Therefore I think 15 + k is an <em>expression</em>, not an equation. Hope this helps :)
The answer is D. preparing a budget to review her expenses.
A, b, c : independent
x, y : dependent