How do you do the friction

Average salary for a medical assistant is $31,220 which is a 20% income tax bracket how much money would they pay in income tax?

(c) the diagram shows the first three shapes of a matchsticks arrangement. first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Atrain is travelling from new orleans to memphis at a constant spend of 79 miles per hour. new orleans and memphis are 395.1 miles apart. how long will the train be to reach memphis round to the nearest tenth