exam Maths Puzzle Numerical Ability

if a 1lb package cost $1 to ship and an additional .30 for each lb. how much would a $7 package cost to ship?

thanks.

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exam Other Question

Rashad wants to wallpaper the four walls of his bedroom. the room is rectangular and measures 11 feet by 13 feet. the cieling is 10 feet high. a roll of wallpaper at a store is 2.5 feet wide and 50 feet long. how may rolls should he buy? Find the area of the parallelogram. Round to the nearest tenth if necessary.

14m, 19m, 14m, 19m