Seven times one number is half of another put in equation form

Working on itts i’m going to need you to me as i go along 1-5

)a smart phone has dimensions of 4.9 inches (height), 2.3 inches (width) and 8.0 millimeters (depth). what is the volume of the smart phone in cubic centimeters? (1 in = 2.54 cm)

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