Astore owner buyso backpacks at a certain price and sells them at a higher price. the difference is called the markup. if she pays 21$ for a backpack and adds a 40% markup on the price she paid, what is the selling price?

Normal yağmur ile asit yağmuru arasındaki fark nedir

Evaluate the expression for the given value of the variable. ∣-4b-8∣+∣-1-b^2 ∣+2b^3 ; b=-2

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)