Mario invested $6,000 in an account that pays 5% annual interest compounded annually. using the formula a = p(1 + r)t, what is the approximate value of the account after 2.5 years?

a) $6,075
b) $6,118
c) $6,456
d) $6,778

P- 6000
r-5%—>0.05
t-2.5
Plug into the equation.
A=6000(1+0.05/1)^2.5*1
A=$6,778.36
or simply $6,778
Hope this helps. also the t needs to be placed an exponent so as not to confuse yourself. Have a great day!

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.