Answer:
8x + 12y + 15z
Step-by-step explanation:
Given the sales rate of three items: 8$ for t-shirts, 12$ for sweaters, and 15$ for jeans. It also states that these rates are represented by the corresponding variables being x for t-shirts, y for sweaters, and z for jeans.
To complete the expression, just combine the rate with the corresponding variables. i.e <u>8</u>$ for t-shirts, and <u>x</u> for shirts = 8x, <u>12</u>$ for sweaters and <u>y</u> for sweaters = 12y, <u>15</u>$ for jeans, and <u>z</u> for jeans = 15z. Finally, sum them together.
<u>8x</u> + <u>12y</u> + <u>15z</u>