Answer:
it's 13
Step-by-step explanation:
I just took it
Answer to both is 13 and 1.3 billion years old.
I just completed the assignment, sorry if this is late. but I hope it helps
x^3 +4x
4.75
19 goes into 4 4 times, so we are left with 4 3/4. 3/4 is 0.75, so we have 4.75 as our answer.