The ratio of kids to adults at a dollar store is 2:1. Suppose that there is a total of 50 kids and adults at the dollar store. How many kids are there?

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 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)

I’m really confused and need your assist me with this question i’ve never been taught

Use this graph to find the cost of 6 show tickets