Which of the following is the conjugate of a complex number with 2 as the real part and −4i as the imaginary part? (6 points) 2 − 4i
2 + 4i
−4i − 2
4i − 2

Maria donates a fixed amount, a, to a charity each month. if she donates $300 in 12 months, what is the equation for a? a. a + 300 = 12 b. a × 300 = 12 c. a × 12 = 300 d. a + 12 = 300 e. a + 32 = 100

Aclass consists of 55% boys and 45% girls. it is observed that 25% of the class are boys and scored an a on the test, and 35% of the class are girls and scored an a on the test. if a student is chosen at random and is found to be a girl, the probability that the student scored an ais

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39