Question

Can someone help me with a few of these questions please

Answer 1

Answer:

15x, 35x+75y, $\frac{n}{7}$, 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 $\frac{n}{7}$ and 5 more than c is 5+c.