Answer:
5 hours
Step-by-step explanation:
189-32=157
157/33 is about 4.76
4.76 rounded is 5 so the job took 5 hours
Answer:
9
Step-by-step explanation:
Answer:
you didn't show the following
Step-by-step explanation:
but I'd love to help
To find the annual rate of interest, here's what we need to do:

In this case:
333/4500 x 100%
=37/500 x 100%
=7.4%
Therefore the answer is 7.4%.
Hope it helps!
If I=P*r*t, we can input 450 in for I, 3000 in for the principal (P, or the starting rate), and 3 for t=time because there were three years, resulting in 450=9000*r. Next, we can divide both sides by 9000 to get 0.05 or 5% as our answer.