Question

Please help me, worth 20 points!

Answer 1

Answer:

8.25 * 10^16

Step-by-step explanation:

0.011 grams = 1.1 * 10^-2 grams

Total weight of all the grains of sand in the worlds

= 1.1 * 10^-2 *  7.5 * 10^18

= 8.25 * 10^16   (answer)

Answer 2

Answer:

825000000000000000

Step-by-step explanation:

(7.5 x 10^18) x 0.011

7500000000000000000 x 0.011

825000000000000000

I don't know how to word the sentence, sorry.