PLEASE HELP THIS IS DUE AT 11:00! TWO IMAGES BELOW PLEASE I AM BEGGING YOU I MARK BRAINLIEST! I AM FAILING AND NEED TO GET THESE TWO QUESTIONS RIGHT OR I FAIL! PLEASE <3

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

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

The revenue each season from tickets at the theme park is represented by t(c)=5x. the cost to pay the employees each season is represented by r(x)=(1.5)^x. examine the graph of the combined function for total profit and estimate the profit after four seasons