Solve this quadratic equation using the quadratic formula.

x2 + 8x - 5 = 0

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

How do businesses a country's economy? a. by investing in goods and services b. by increasing the unemployment rate c. by making profits

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?