Model the problem with algebra tiles. Then use the model to write an algebraic expression that represents the situation. Isaac gave away five balloons. How can you model this situation? The situation can be modeled by algebra tiles with one orange x tile and . The situation can be represented as an algebraic expression as .

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Lines a and b are perpendicular. if the slope of line a is 3, what is the slope of line b?