Apair of headphones are 35% if they were originally priced at $13.40 how much is the sale or ice? ( idk and i need ! )

Abcd is a parallelogram. the diagram is not drawn to scale. if m

The size of a certain cell is 2.5*10^-9m. another cell is 1.5*10^3 times larger. how large is the larger cell in scientific notation?

The perimeter of a rectangular lot of land is 436 ft. this includes an easement of x feet of uniform width inside the lot on which no building can be done. if the buildable area is 122 ft by 60 ft, determine the width of the easement. select one: a. 9 feet b. 18 feet c. 4.5 feet d. 7 feet