Solve.m - 1 ? -5
A. m ? 4
B. m ? -4
C. m ? -6
D. m ? 6
Answer: B
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Write or illustrate the number in the indicated form.64; Express in expanded form.
A. 6 ? 100 + 4 ? 101 B. 6 ? 101 + 4 ? 100 C. 6 ? 101 + 4 ? 102 D. 6 ? 102 + 4 ? 101
List the terms of the expression.10x + 4y
A. 10, 4 B. 10x, 4y C. 10x, -4y D. 10, x, 4, y
Find the product and simplify. Assume all variables represent nonnegative real numbers.
(
- 
)
A. 7
- x
B. 
- 
C. x
- 
D. x
- x
Solve the problem.The cost of owning a home includes both fixed costs and variable utility costs. Assume that it costs $3171 per month for mortgage and insurance payments and it costs an average of $2.20 per unit for natural gas, electricity, and water usage. (i) Determine a linear function that computes the annual cost of owning this home if x utility units are used. (ii) What does the y-intercept on the graph of the function represent?
A. y = -2.20x + 3171; y-intercept, 3171, represents the minimum cost of owning the home without spending anything on utilities. B. y = 2.20x + 3171; y-intercept, 3171, represents the minimum cost of owning the home without spending anything on utilities. C. y = 2.20x + 38,052; y-intercept, 38,052, represents the minimum cost of owning the home for 12 months without spending anything on utilities. D. y = -2.20x + 38,052; y-intercept, 38,052, represents the minimum cost of owning the home for 12 months without spending anything on utilities.