Investment problems

p=$300
r=7%
t=2

what is i?

a)$4.20

b)$42.00

c)$420.00

B

Step-by-step explanation:

This is a simple interest problem. The formula for simple interest is:

Where

i is the interest amount

P is the principal amount

r is the rate of interest

t is the time in years

Given P, r, and t, we need to find convert r (as a percentage) to a decimal. We simply divide by 100. Shown below:

r = 7% = 7/100 = 0.07

Now, we substitute into formula and find i (interest):

Correct answer is B, $42

days of the week

step-by-step explanation:

javier earned more money then kyle, so that won't always be a constant term, but the days of the week do not change so that term is always constant.

edit: i meant

pls refer ro the top for answer