After receiving his allowance, spencer spent half of it on a mother’s day card. he bought two toy cars for $.49 each to give to his brothers, and a pack of gum for $.35. how much did spencer receive for his allowance if $.42 is left over? ( give equation and answer)

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: