Radioactive materials can be described using half-lives. For every half-life that
passes, the amount of radioactive
material decreases by 50%. If you begin
with 40 grams of material, which function
can you use to find y, the amount of the
substance that remains after t half-lives?

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

Write a story that matches with the expression 42x-5 pls hurry

Find the missing dimension! need asap! tiny square is a =3025 in ²