What is the area of a circle. Using 3.14 for. A circle with diameter of 8.4 ft. Round to the nearest tenth if necessary

Can anyone me with 32,33,36,37,and 40.

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,

(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.)