Answer:

Step-by-step explanation:
Given


Required
Determine the actual sales
Represent the actual sales with u


<em>Hence, the total sales can be expressed using y = 200 + x</em>
<span>three hundred ten million, seven hundred sixty-three thousand, one hundred thirty-six</span>
Answer:
159
Step-by-step explanation:
She paid 6 payments of 139
6*139 = 834
The cost was 675
834-675 =159
The interest was 159
Examples of constant :
2, 5, 0, -3, -7, 2/7, 7/9 etc.
Examples of variable :
The letters x, y, z, a, b, c, m, and n