3. Erupting lava from an active volcano flows through a tube system about eleven kilometers to the sea at a speed of five hundred meters per hour. Calculate how long it takes the lava to reach the sea. (Three Points) pelers per the love to -47 = 21 8x + 4 = 8X=-16 X=-2 2. If the difference of a number and nine is doubled, the result is seven more than three times the number. Find the number. (Three Points)