Evaluate the rational number expression and express the result in simplest form. 3 + 1+ 3
4 4 8. *fractions

A)
15
16
B)
15
32
c)
27
32
D
9
64

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

The ratio of rock songs to dance songs on jonathan’s mp3 player is 5: 6. the total number of rock and dance songs jonathan has is between 101 120. how many rock songs does he have?

Me. i can't figure out this question. give an explanation too. .