Two linear functions, y1 and y2, are graphed with their point of intersection indicated. Give the solution set of 
A. {-1}
B. {1}
C. 
D. {-2}
Answer: A
Mathematics
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Find percent notation for the fraction notation in the sentence.Bob's rent is 
of his income. What percent of his income goes to pay the rent?
A. 40% B. 55% C. 50% D. 45%
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Use the substitution formula to evaluate the integral.
A. 
B. - 
C. - 
D. 
Mathematics
Find x: 22 + 3x = 55
a. 5 b. 8 c. 9 d. 11 e. 15
Mathematics
Write the best-fit linear model for the data.The paired data below consist of the costs of advertising (in thousands of dollars) and the number of products sold (in thousands). Find a linear function that approximates the number of products sold as a function of the cost of advertising. 
A. y = 55.8 - 2.79x B. y = -26.4 - 1.42x C. y = 26.4 + 1.42x D. y = 55.8 + 2.79x
Mathematics