Solve the problem.The paired data below consist of the temperatures on randomly chosen days and the amount a certain kind of plant grew (in millimeters). By using linear regression, the following equation is obtained: 
where x is temperature and y is growth in millimeters. Use this equation to predict the growth of a plant if the temperature is 61.
A. 28.45
B. 27.96
C. 26.19
D. 27.47
Answer: D
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Use the chart to answer the question.The NSC (Not So Consistent) Corporation has just completed its first year of business. The following chart shows its monthly profit (or loss). Month Profit (Loss) in DollarsJanuary-14,526February 1874March -8977April -14,107May 14,073June 14,632July -13,834August -13,170September -4860October 6630November -3338December -974When was the loss greatest?
A. December B. June C. November D. January
Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent. x + 4y = -4 2x + 5y = -5
A. No solution, inconsistent B. (0, -1) C. (1, 0) D. (1, -2)
Divide. Write the answer in simplest form.5
÷ 10
A. 
B. 
C. 
D. 
Solve the application and answer with a complete sentence.If 2 teachers are needed for 90 students, how many teachers are needed for 900 students?
A. 20 teachers are needed. B. 40 teachers are needed. C. 30 teachers are needed. D. 180 teachers are needed.