Solve the system of equations using substitution.
A. (6, 1)
B. (1, 6)
C. (0, 1)
D. (-6, 1)
Answer: A
Mathematics
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Find the numerical value of the expression for 
and 
A. a) 
b) 
B. a) 
b) 
C. a) 
b) 
D. a) 
b) 
Mathematics
Find the median for each data set.8.7 hr, 6.7 hr, 2.9 hr, 6.9 hr
A. 6.7 hr B. 2.9 hr C. 6.8 hr D. 6.9 hr
Mathematics
Solve the following equation.
10x = 320 a. 2.05 b. 2.50 c. 2.9 d. 3.3
Mathematics
Write the conjugate 
of the complex number z. Then find z
.z = 4 + 2i
A. 
= 4 - 2i, z
= 16 - 4i
B. 
= 4 - 2i, z
= 20
C. 
= 4 - 2i, z
= 12
D. 
= 4 - 2i, z
= 16 - 4i2
Mathematics