Can anyone me with my problems for 25 points

What is the equation of the graph that represents f(x)=x^4 stretched vertically by 2 and shifted up 3 spaces

According to the data set, where should the upper quartile line of the box plot be placed?

Barbara has a good credit history and is able to purchase a car with a low-interest car loan. she co-signs a car loan for her friend jen, who has poor credit history. then, jen defaults on the loan. who will be held legally responsible by the finance company and why? select the best answer from the choices provided. a. barbara will be held legally responsible because she has a good credit history. b. jen will be held legally responsible because she drives the car. c. barbara will be held legally responsible because she is the co-signer. d. jen will be held legally responsible because she has a poor credit history. the answer is a