Reduce fractions expressing probability to lowest terms. in 3,000 repetitions of an experiment, a random event occurred in 500 cases. the expected probability of this event is?

Ineed with number 17 i don’t get it at alll

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

Which steps could be part of the process in algebraically solving the system of equations, y+5x=x^2+10 and y=4x-10