Answer:
D. 0.65
Step-by-step explanation:
0.20 + 0.15 + 0.30
= 0.65.
<u>Given</u>:
Juan has been saving for a new bike for two months. So far, he has saved $150 for the bike.
The money that he has saved so far is 30% of the cost of the bike.
We need to determine the total cost of the bike.
<u>Total cost of the bike:</u>
Let x denote the total cost of the bike.
The total cost of the bike is given by

The value of 30% can be written as 
Thus, we get;

Multiplying both sides by
, we have;

Simplifying, we have;


Thus, the value of x is 500.
Hence, the total cost of the bike is $500.
Multiply the x by 4, then add 3. ( 4×

+3= 5 ). Keep doing that for the rest. Hope this helped a little. If you have any questions, you can message me if you would like.
The learning in geometry would be most helpful to medical imaging specialist. Thus, the answer is letter D. They are responsible for procuring high quality images that will be the aid for medical specialists and doctors in diagnosing different medical conditions.
This follows from the half-angle identity for cosine.