Use substitution to determine whether the given ordered pair is a solution of the given equation.(5, 5); 3x + 2y = 25
A. Yes
B. No
Answer: A
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Solve the inequality.In order for a chemical reaction to remain stable, its Celsius temperature must be no more than 
. Find the Fahrenheit temperatures at which the reaction will remain stable. 
A. F ? 25.66° B. F ? 25.66° C. F ? 172.74° D. F ? 172.74°
Determine if the given regular figures form a vertex figure.Pentagon, two triangles, 20-gon
A. Yes B. No
If one of the students is selected at random what is the probability he or she spent exactly 11 hours in the lab?
Use the following information to answer questions 2-10. 24 students in an engineering class were asked to record the number of hours spent in a lab during a week. The results are listed below. 3, 10, 21, 14, 8, 5, 1, 4, 13, 7, 9, 6, 11, 10, 6, 7, 12, 16, 1 , 7, 14, 1, 11, 8
Add or subtract.(4 - 5i) + (3 + 3i)
A. 7 + 2i B. 7 - 2i C. -7 + 2i D. 1 + 8i