The images show the stages of human development. At which stage does cell differentiation start?.

The distance d that a car can travel in a certain amount of time t can be found by multiplying the rate of speed r by the travel time. if a car has already travel 4 miles, the formula for the total distance travel is d= rt + 4. which of the following gives the value of r, in terms of d and t?

Factor out the greatest common factor. minus − 14 14p3 plus + 10 10p2 plus + 4 4p

Carbon dioxide can be produced form what type of power generation?