A drop of oil makes a circular ring in a water puddle. The radius of the oil ring expands at 1.5 cm per second. If r(t) = 1.5t r(t)=1.5t and a(r) = \pi r^2 a(r)=πr2, what composition of functions describes the area of the oil ring in terms of time?

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Which type of graph would allow us to compare the median number of teeth for mammals and reptiles easily