If fx) x^2 +2x + 3, what is the average rate of change of f(x) over the interval [-4, 6]?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

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.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much