8. Asher is involved in a competition where the grand prize is $ 150,000 dollars. Represent the
amount of the grand prize in scientific
notation.

1.5 x 10^5

Step-by-step explanation:

1.5 x 10⁵

We use scientific notation to write huge ( or micro ) numbers as easily as possible. To do that, we use the following notation: a x 10ᵇ

Take 150,000, and put a decimal right between the 1 and 5, like so:

1.50000

Now simply count the numbers after the decimal:

1 . 5 0 0 0 0

    1  2 3 4 5

That's five places, or numbers, after the decimal, and now we can use the notion mention earlier, a x 10ᵇ

So a = 1.5 and b = 5, and now we can combine the whole thing, so 1.5 x 10⁵

We can double check if needed/desired by doing the following

10⁵ = 100,000 x 1.5 = 150,000

d (5 x (-20)) * (100 x (0.7))

step-by-step explanation:

5÷1/100 * -.7 *-20

copy dot flip

5*100 * -.7 *-20

rearrange

5*-20   * 100 *-.7

-100   *-70

7000