Help me with 2 and 3

One positive number is 9 more than twice another. if their product is 95, find the numbers

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.