You Own Two Fast-Food Restaurants $R _ { 1 } = 323 + 11.8 t,$

question 7

Multiple Choice

You own two fast-food restaurants. During the years 2000 to 2008, the sales for the first restaurant have been increasing according to the function $R _ { 1 } = 323 + 11.8 t,$ $t = 0,1,2,3,4,5,6,7,8$ where $R _ { 1 }$ represents the sales (in thousands of dollars) and $t$ represents the year, with $t = 0$ corresponding to 2000. During the same nine-year period, the sales for the second restaurant have been decreasing according to the function $R _ { 2 } = 470 - 18.6 t,$ $t = 0,1,2,3,4,5,6,7,8.$ Write a function that represents the total sales for the two restaurants to determine whether the total sales have been increasing or decreasing.

• A) \(R _ { T } = - 147 - 6.8 t,\) total sales have been decreasing.
• B) \(R _ { T } = 793 + 68 t,\) total sales have been increasing.
• C) \(R _ { T } = 793 - 6.8 t,\) total sales have been decreasing.
• D) \(R _ { T } = - 147 + 30.4 t,\) total sales have been increasing.
• E) \(R _ { T } = 147 - 30.4 t,\) total sales have been decreasing.

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Definitions:

Turner's Syndrome

A chromosomal disorder affecting females, characterized by the absence of all or part of a second sex chromosome.

Infertile

The inability to conceive children or young after a period of time, usually a year or more of regular sexual activity without contraception.

Down Syndrome

A genetic disorder caused by the presence of all or part of a third copy of chromosome 21, characterized by physical growth delays, characteristic facial features, and often intellectual disability.

Extra Chromosome

The presence of an additional chromosome in an individual's genetic makeup, which can result in developmental disorders such as Down syndrome.