Tell whether the ordered pair (−5, −4) is a solution of the system

Which of the choices shown could be used to prove that aacp=abcp ?

Solve each quadratic equation by factoring and using the zero product property. n^2 - 49 = 0

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f