A grocer bought 20kg of sugar at Rs.70 per kg. He sold 15kg of sugar at Rs.75 per kg and the remaining quantity at Rs.69 per kg. Find his profit or loss percent in the transaction.

If f(x)=3x+1 and f^-1=x-1/3, then f^-1(7)=

The given dot plot represents the average daily temperatures, in degrees fahrenheit, recorded in a town during the first 15 days of september. if the dot plot is converted to a box plot, the first quartile would be drawn at __ , and the third quartile would be drawn at link to the chart is here

The administrator of a large assisted living facility wanted to know the average age of the residents living at the facility. he randomly selected 12 residents and determined their age, listed here: 80, 65, 75, 83, 68, 73, 88, 79, 94, 72, 79, 68 what's the average age of the sample of residents? a. 79 years old b. 68 years old c. 75 years old d. 77 years old