3. 30% of households in a large population have a total annual income of $80,000. A simple random sample of 4 of these households is selected. What is the probability that 2 or more of the households in the survey have an annual income of $70,000? (Assume household incomes are independent) A) 0.3456
B) 0.3483
C) 0.5000
D) 0.5248
E) 0.0837

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

The graph of y = ax^2 + bx + c is a parabola that opens up and has a vertex at (0, 5). what is the solution set of the related equation 0 = ax%2 + bx + c?

The school that imani goes to is selling tickets to the annual dance competition. on the first day of the ticket sales the school sold 7 adult tickets and 5 child tickets for a total of $96. the school took in $40 on the second day by seling 3 adult tickets . find the price of an adult ticket and the price of a child ticket. solve by using substitution elimination college prep algebra math heres the 2 equations i came up with 7x+5y=96 and 3x+2y= -40 show all workiv be stuck on this.