Answer:
15x, 35x+75y, [tex]\frac{n}{7}[/tex], 5+c
Step-by-step explanation:
When we have unknown amounts, we use a variable to write a term.
Books cost $6.25 each plus a shipping & handling fee of $8.75 for a total of $15. We use a variable like x to represent how many books we order at $15. So 15x.
We do the same for chairs and sofas. Each chair costs $35 so we write 35x. Each sofa costs $75 so we write 75y. We add together for 35x+75y
We write expressions based on situations or just descriptions. n divided by 7 is [tex]\frac{n}{7}[/tex] and 5 more than c is 5+c.
