Perform the indicated operations and express your answer in the form a + bi. 
A. -5i
B. 5
C. -5
D. 5i
Answer: D
Mathematics
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Solve.(x - 7)(8x + 23) = 0
A. 
B. 
C. 
D. 
Mathematics
Solve.It is 74 miles from Springfield to Archer. It is 92 miles from Archer to Cayfield. Driving directly, it is 142 miles directly from Springfield to Cayfield. It is 42 miles from Cayfield to Ridgeport. If Martin drives from Springfield to Archer, then from Archer to Cayfield, and finally home to Springfield, how many miles does he drive?
A. 350 mi B. 318 mi C. 308 mi D. 258 mi
Mathematics
Use the factor theorem to determine whether the first quantity is a factor of the second quantity.3x3 + 4x2 - 2x + 4, x + 2
A. Yes B. No
Mathematics
Multiply using the Russian Peasant method.7 × 70
A. 480 B. 510 C. 420 D. 490
Mathematics