Solve the equation.4(2z - 4) = 7(z + 5)
A. 23
B. 19
C. 51
D. -19
Answer: C
Mathematics
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Tell whether the fractions are equivalent or not equivalent.
and 
A. Equivalent B. Not equivalent
Mathematics
Use the rules for exponents to rewrite the expression and then evaluate the new expression. (2-2)0
A. 1
B. 
C. 0
D. -4
Mathematics
Solve the system of equations using substitution.
A. x = 12, y = -5; x = 5, y = -12 or (12, -5), (5, -12) B. x = -12, y = -5; x = -5, y = -12 or (-12, -5), (-5, -12) C. x = -12, y = 5; x = -5, y = 12 or (-12, 5), (-5, 12) D. x = 12, y = 5; x = 5, y = 12 or (12, 5), (5, 12)
Mathematics
Solve the system of equations by the elimination method. x - 2y = -53x - 1y = -15
A. (-5, 0) B. no solution C. (-4, -5) D. (5, -1)
Mathematics