Can someone help me please A small business earns a profit of $6500 in January and $17,500 in May. What is the rate of change in profit for this time period?

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The number of hours per week that the television is turned on is determined for each family in a sample. the mean of the data is 37 hours and the median is 33.2 hours. twenty-four of the families in the sample turned on the television for 22 hours or less for the week. the 13th percentile of the data is 22 hours. approximately how many families are in the sample? round your answer to the nearest integer.

Suppose that in 2008 , 840,800 citizens died of a certain disease assuming the population of teh country is 399 miliion, what is the mortality rate in units of deaths per 100,000 people?