By what number must you multiply each side of the equation 3/4x=9 to produce the equivalent equation x=12

How many days was the temperature above 90 degrees?

If you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood?

Idk math. i need to fill in the missing numbers . due tommorow !