Dy/dx=(x+1)^2 in problem solve the given differential equation by separation of variable

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Determine if the sequence is arithmetic or geometric.  then identify the next term in the sequence.    0.2, 1, 5, 25, . . group of answer choices arithmetic; 75 geometric; 75 arithmetic; 125 geometric; 125

Ratio of circumference to diameter example plz i need to now what it looks like.