If I subtract 20 from my number, then square the result, I get the same answer as if I square my number, then subtract 20 from the result What is my number and how do you work it out?

About __ of the mass of the cell is water

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water

Do plant cells perform cellular respiration?