find the first term and the common ratio of a g . p whose fourth term is 250 and seventh term is 31,250
a * r ^ 3 = 250 , a * r ^ 6 = 31,250 , r ^ 3 = 31,250 / 250 = 125 r = 5 , a * 125 = 250 , a = 2 answer : d
divide(divide(divide(250, const_2), multiply(const_0_25, const_100)), const_2)