Solve the problem.The perimeter of a triangle is 70 cm. The triangle is isosceles now, but if its base were lengthened by 7 cm and each leg were shortened by 4 cm, it would be equilateral. Find the base of the original triangle.
A. 27
B. 15
C. 16
D. 23
Answer: C
Mathematics
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Find the sum.
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Mathematics
Write the number in the sentence in digits.The Johnsons purchased a used car with eighty-one thousand, four hundred three miles.
A. 8143 B. 81,430 C. 81,403 D. 810,403
Mathematics
Find the exponential function that satisfies the given conditions.Initial value = 64, decreasing at a rate of 0.5% per week
A. f(t) = 0.5 ? 0.36t B. f(t) = 64 ? 1.5t C. f(t) = 64 ? 1.005t D. f(t) = 64 ? 0.995t
Mathematics
Graph.y = 
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B. 
C. 
D. 
Mathematics