Which equation of the least squares regression line most closely matches the data set?

Note: The variable x represents the years after 1972.

yˆ=15.3x−25.4

yˆ=15.3x+25.4

yˆ=0.06x−28

yˆ=1.03x−56

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.

Bring the fraction a/a-4 to a denominator of 16-a^2

4+(2+x) can you me solve this problem