The length of a cell phone is 8 centimeters to the
nearest centimeter and 81 millimeters to the nearest
millimeter. Which measurement is more precise? PLS HELP BEST ANSWER GETS BRAINLESST

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?

Graph the system of inequalities presented here on your own paper, then use your graph to answer the following questions: y > 2x + 3y is less than negative 3 over 2 times x minus 4part a: describe the graph of the system, including shading and the types of lines graphed. provide a description of the solution area. (6 points)part b: is the point (â’4, 6) included in the solution area for the system? justify your answer mathematically. (4 points)

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?