Which of the following statments about f(x)= -(x - 4)^2 - 1 are true. Select All that apply

Which of the following answers is 7/9 simplified? 7/9 2/9 11/9 2/7

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?

An amusement park manager determined that about 23 of all customers would wait in long lines to ride the new roller coaster. which simulation could not be used to answer questions about whether a customer would wait?