Which expressions are equivalent to -2(5x-3/4)? -2(5x)+(-2)(-3/4)

-10x-3/4

-10x+6/2

-10x+3/2

-10x-6/2

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Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

The area of each triangle is 7 square units. the surface area of the triangular prism is