When graphing an inequality can you always us (0,0) as a test point to determine where to shade?

The swimming pool is open when the high temperature is higher than 20∘c. lainey tried to swim on monday and thursday (which was 3 days later). the pool was open on monday, but it was closed on thursday. the high temperature was 30∘c on monday, but decreased at a constant rate in the next 3 days. write an inequality to determine the rate of temperature decrease in degrees celsius per day, d, from monday to thursday.

What is the simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Credit card a offers an introductory apr of 3.4% for the first three months and standard apr of 15.7% thereafter,