Macy described four triangles as shown below:

triangle a: all angles measure 60°.

triangle b: all sides have length 6 cm.

triangle c: two sides have length 6 cm, and the included angle measures 60°.

triangle d: base has length 6 cm, and base angles measure 50°.

which triangle is not a unique triangle?

triangle a
triangle b
triangle c
triangle d

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.

If 25% of y is 30, what is 60% of y?