HELP WORTH 50 POINTS ILL GIVE U BRAINLESS IF UR RIGHT 5.1 x 10^-3 – 1.8 x 10^-3
in scientific notation (evaluate)

6.3x+14 and 1.5x-6 answer in simplified form

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Percy rides his bike 11.2 miles in 1.4 hours at a constant rate. write an equation to represent the proportional relationship between the number of hours percy rides, x,and the distance in miles, y, that he travels.