Simplify the expression.
(y + 3) + 7y
A. 
y + 12
B. 3y - 12
C. 
y - 12
D. 3y + 12
Answer: B
Mathematics
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Divide.(x2 + 4x - 21) ÷ (x + 7)
A. x2 + 5x - 14 B. x + 3 C. x - 3 D. x2 - 3
Mathematics
Multiply.(x - 4)(8x2 + x + 7)
A. 8x3 + 31x2 + 3x - 28 B. 8x3 - 33x2 + 3x - 28 C. 8x3 - 31x2 + 3x - 28 D. 8x3 - 31x2 + 11x - 28
Mathematics
Refer to a triangle ABC.If A = 34°, B = (x + 61)°, and C = (x + 51)°, find B and C.
A. B = 39°, C = 73° B. B = 39°, C = 78° C. B = 68°, C = 129° D. B = 78°, C = 68°
Mathematics
What is the locus of the midpoints of the radii of 
whose radius measures 4 inches?
What will be an ideal response?
Mathematics