Charles buys 40 packs of pens. There are 16 pens in each pack.
Each pack costs £4.30.
Charles sells each pen for 85p but he only manages to sell of the pens.
How much profit did he make?

Which statement most accurately describe why the division property of exponents does not apply to the expression (-8)^2/(-3)^4

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.