Prime factor is a factor that is a prime number.
Prime factors of :
8 : 2 × 2 × 2. Also can be written as

12 : 2 × 2 × 3. Also can be written as

20 : 2 × 2 × 5. Also can be written as

30 : 2 × 3 × 5
56 : 2 × 2 × 2 ×7. Also can be written as

70 : 2 × 5 × 7
You can find all of them by using Factor Tree [ as shown in the picture] or Dividing by prime numbers.
Answer:
Emily=24 marbles Zak=8 marbles
Step-by-step explanation:
sum of ratio= 3+1=4
Emily: Zak= 3:1
no. of marbles for Emily=
×total no. of marbles
=
×32
=24 marbles
No. of marbles for Zak=
×32
=8 marbles
The last time (before August 21, 2017) when the lower 48 states saw a total solar eclipse was 1979.
That was 2017 - 1979 = 38 years ago.
In scientific notation,
38 = 3.8 x 10¹
Answer: 3.8 x 10¹ years ago.
Answer:
Sorry couldn't figure it out
☹️
Step-by-step explanation:
set is the collection of well defined object having some common property
please fOllow me