When Dylan checks their school lunch account, the balance is $56.
After buying 8 lunches, the balance is $40.
At Dylan's school, every student starts with a balance
of $80 for school lunches.
How many lunches had Dylan bought when they first
checked their balance?

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)

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

F(x) = x^2+x-2/x^2-3x-4 what is the domain and range, x-and y-intercepts, horizontal asymptotes, and vertical asymptotes?