Find the quotient and simplify ((4x^3)/(x^2-1)*(x^7)/((x+1)^2))

Which of the following are accepted without proof in a logical system? check all that apply.

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Asap! i'm not good math and i'm lost.