Ahuman red blood cell is 7.5 micrometers in diameter.
1 centimeter = 10,000 micrometers
what is the diameter in centimeters?

Create and solve a linear equation that represents the model, where squares and triangles are shown evenly balanced on a balance beam. assume the weight of a square is 1 unit and the weight of a triangle is unknown.

Enter the number of complex zeros for the polynomial function f(x) = x 4+ 5x² +6

Me because some of question i don’t understand