HEy YOU!HELp ME PleASe... Suppose you receive $100 for a high school promotion present, and you deposit it into a paypal account. Then, each week, you take out $5 to use on snacks at the gas station. Write an equation to represent this situation. Specify what each variable represents.

Find a number such that if you add 8 and divide the result by 4 you will get the same answer as if you subtracted 3 from the original number and divided by 2

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

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)