Find a linearly independent set of vectors that spans the same subspace of r4 as that spanned by the vectors

What is the quotient of -3/8and-1/3?

The sixth grade art students are making a mosaic using tiles in the shape of right triangles.each tile has leg measures of 3 centimeters and 5 centimeters.i f there are 200 tiles in the mosaic what is the area of the mosaic.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.