Plz help asap its math and need asap

Which equation can be simplified to find the inverse of y = 2x2?

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"