How do u write 0.8 times 1 to the power of 2 our of scientific notation

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Polygons efgh and e′f′g′h′ are shown on the coordinate grid: what set of transformations is performed on efgh to form e′f′g′h′? a. a translation 1 unit to the left followed by a 90-degree counterclockwise rotation about the origin b. a translation 1 unit to the right followed by a 90-degree counterclockwise rotation about the origin c. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the right d. a 90-degree clockwise rotation about the origin followed by a translation 2 units to the left

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?