Cell differentiation always involves .

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?

Wats iqpow pls write 20 words for an answer

Land is to arable ; river is a, navigable b, shallow c, presumsor d, water