Ineed to know how to simplify using conjugate

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

Hardest math question of all time can you solve the equation. check for extraneous solutions.9∣9-8x∣ = 2x+3

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom