Answer:
Step-by-step explanation:
Given
There are
4 country music CD
1 rock and roll CD
2 rap CD
3 Tejano CD
When the exponent is a negative value, you would move the decimal point that many places to the left.
9 x 10^-4 = 0.0009
Answer:
36 i think
Step-by-step explanation:
Answer:
45
Step-by-step explanation:
1 x 1 x 3 x 3 x 5
Simple, first, change 70% into 0.7
thus,
21= 0.7*n
21/0.7=0.7n/0.7
30=n
Thus, your answer, is 30.