Can someone pls help me

Write as a product: ac^2–ad+c^3–cd–bc^2+bd

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?