Determine the fundamental period of x(t) = 2cos(0.2nt)+3sin(0.5t)cos(0.3rt)

The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 3 6 220- 210- 200 190- 180- 170- 160- 150- 140- 130- 120- 110 100- 90- 804 9 12 15 Let y be the retails sales in billions of dollars in x years since 1995. A linear model for the data is y = 9.44x + 84.182. 85.851 108.426 141.781 169.256 202.297 222.266 3 6 9 12 15 A) Use the above scatter plot to decide whether the line of best fit, fits the data well. The function is not a good model for the data The function is a good model for the data.

Javier earned $8.50 per hour for 32 hours and $12.75 per hour for 8 hours. What was his average hourly wage for those 40 hours?

A student found the average boat price for 14 boats in a doc was 250,000. Two more boats were later added. The two new prices were worth 600,000 and 750,000 what was the new average price?