Answer: it’s D
Step-by-step explanation:
Starts at 400 and goes up 5%
The simplest form of an interest equation is A = P(1+rt)
where A = the total amount of money at the end, P = the principal (or amount of money you started with), r = the rate in percent, and t = the time in years.
In this case, P = 15000, r = 0.03 (because 3% in decimal form is 0.03), and t = 1:

So, after 1 year he will get $15450 back, making him $450 more.
The expression isn’t there I can’t answer it.
Answer:
add/hyp
Step-by-step explanation:
using SOHCAHTOA cosine of an angle A will be adjacent/ hypotenus
Answer:
20%
Step-by-step explanation:
To find this, set up a ratio of percent over 100 equals is over of. Is being 32 and of being 160.
= 
Then, cross multiply. Multiply 32 by 100 before dividing by 160 in order to get the final answer of 20%.
32 x 100 = 3200
3200/160 = 20
Hope this helps!