Maria and Ed each have 4 pieces of candy. Ed thinks he will have more candy after 5 days by adding 20 pieces each day. Maria thinks she will have more candy after 5 days by doubling the amount of candy each day. What are the Maria and Ed's fucntions?

The area of square garden is 300m squared. how long is the diagonal?

What is the value of x when x + 7 = 21?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)