Solve the problem.The area of a circle varies directly as the square of the radius of the circle. If a circle with a radius of 
has an area of 78.5 square inches, what is the area of a circle with a radius of 12 inches?
A. 37.68 in.2
B. 454.56 in.2
C. 75.36 in.2
D. 452.16 in.2
Answer: D
Mathematics
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A. 6s6t5(3s2 + t) B. s4t4(18s + 6t) C. 6s4t4(3s2 + t) D. 6s2t(3s + t)
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Add.
A. 175 B. 177 C. 176 D. 166
Mathematics
Divide.
÷ 
A. 3x8 - 24x7 B. 9x11 - 8x4 C. 3x8 - 8x4 D. -5x15
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Solve for the specified variable.
= 
for P
A. P = 
B. P = 
C. P = 
D. P = 
Mathematics