Billy has a gift card with a $160 balance. He buys several video games that cost $50 each. After the purchases, his gift card balance is $10. Enter an equation to help find out how many video games Billy
bought
The equation
can help find out how many games Billy bought

(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.)