A t-shirt and two pairs of shorts cost $53.50. At the same store, two t-shirts and three pairs of shorts cost $84. Assuming that all shirts are sold for the same price, and all shorts cost the same, too, select all statements that are true.

Will give brainliest immeadeately true or false: the origin woud be included in the solution set for the inequality: y< 2x-5

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

Atourist boat is used for sightseeing in a nearby river. the boat travels 2.4 miles downstream and in the same amount of time, it travels 1.8 miles upstream. if the boat travels at an average speed of 21 miles per hour in the still water, find the current of the river.