Find any values of the variable for which each rational expression is undefined. Write answers with the symbol ≠.

Combine like terms to make a simpler expression 3z+z

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?