Solve the problem.The area of a circle of radius r is given by the polynomial ?r2, where ? is an irrational number. Use 3.14 as an approximation of ?, and find the area of a circle with radius 
A. 15.7 cm2
B. 78.5 cm2
C. 75 cm2
D. 31.4 cm2
Answer: B
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Determine the symmetries of the curve.r = 3?
A. x-axis only B. y-axis only C. x-axis, y-axis, origin D. No symmetry
Name the property illustrated by the sentence.-4(a + b) = -4(b + a)
A. Associative property of addition B. Commutative property of multiplication C. Distributive property D. Commutative property of addition
Solve the problem.A gas station sells 4820 gallons of regular unleaded gasoline on a day when they charge $4.05 per gallon, whereas they sell 3849 gallons on a day that they charge $4.10 per gallon. Find a linear equation that expresses gallons sold, G, in terms of price, p.
A. G = -19,420p + 83,449.2 B. G = -19,420p + 83,454.8 C. G = -19,420p + 83,471 D. G = -19,420p + 83,487
Find the product.(9y - 5)(81y2 + 45y + 25)
A. 729y3 + 225y2 - 125 B. 729y3 + 125 C. 81y3 + 125 D. 729y3 - 125