Risa found the value of the expression (−8 + 0 + 13) using the steps shown below. −8 + 0 + 13 −8 + 13 Step 1 5 Step 2 Which property did Risa use in Step 1?

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Identify the initial amount a and the growth factor b in the exponential function. a(x)=680*4.3^x