Use the model from problem 12 to estimate the population of bacteria 9 hours

Its due ! write an equation in which the quadratic expression 2x^2-2x 12 equals 0. show the expression in factored form and explain what your solutions mean for the equation. show your work.

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.