Abag contains purple marbles and yellow marbles ,39 in total .
the number of purple marbles is 6 more than 2 times the number of yellow marbles . how many purple marbles are there ?

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25