Astock can go up, go down, or stay unchanged. how many possibilities are there if you own 7 stocks? how did my textbook get 2187 as the answer?

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry

Plzz ! if you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking/show your work: