Aresearcher believes that eating all organic foods will improve blood pressure. so, the researcher studies groups as their diet is altered. describe the independent variable (treatment variable) and the dependent variable (the variable of interest).

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet

What is the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?

Write a function rule for  “the output is  5 less than the input.” let  xx  be the input and let  yy  be the output.