The average age of a group of teachers and professors is 40. If the teachers and average 35 years and the professors 50 years, then what is the ratio of the number of teachers to professors. Accounting and finance uni

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is: