Is 6 to the negative 2nd power positive or negative?

What are the soultion(s) to the quadratic equation 40- x^2=0

For which pair of functions is (gof)(a)=|a|-2?

The following frequency table relates the weekly sales of bicycles at a given store over a 42-week period.value01234567frequency367108521(a) in how many weeks were at least 2 bikes sold? (b) in how many weeks were at least 5 bikes sold? (c) in how many weeks were an even number of bikes sold?