Write an equation that can be used to find d, the difference between the last number and the first number, for any row r. show or explain your work

The dolphins at the webster are fed 1/2 of a bucket of fish each day the sea otters are fed 1/2 as much fish as the dolphins how many buckets of fish are the sea fed each day? simplify you answer and write it as a proper fraction or as a whole or mixed number

Determine domain and range, largest open interval, and intervals which function is continuous.

How do you do the foil method with polynomials?