Find the value of the expression for the given replacement value.
; a = -4
A. - 
B. - 
C. 
D. 
Answer: B
Mathematics
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Solve the system of equations.-5x - y - 3z = -584x + 7z = 602y + z = 16
A. No solution B. (-8, 6, 16) C. (8, 4, 6) D. (8, 6, 4)
Mathematics
Solve the equation.
= 6
A. 
B. 
C. 
D. no real solution
Mathematics
Solve. Write the fraction in simplest form.The circle graph below shows the fractional part of the Suarez family's income allocated to each category each month.
If the Suarez's income last month was $4000, how much money was allocated for entertainment? Round to the nearest cent, if necessary.
A. $1000.00 B. $444.44 C. $720.00 D. $266.67
Mathematics
Perform the calculation.94°22' - 27°36'
A. 67°14' B. 67°36' C. 66°46' D. 121°58'
Mathematics