What is AC? Plz help

Is fgh ~ jkl? if so, identify the similarity postulate or theorem that applies.

Anyone know? will mark brainliest if correct

Ifurniture stores having a weekend sale and is offering 20% discount on patio chairs and table the sales tax on furniture is 6.25 using function composition how can you represent the total amount a that you would need to pay for this furniture that cost x dollars