Can someone me with this solving exponential equation e^4x-9=56

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

X-10/4 when x = –18 a 7 b –2 c –7 d 2

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: