one hundred thirty two million, eight hundred eighty thousand and sixteen
(Your commas are in the incorrect spot)
fifteen thousand, eight hundred and two
Sin = opposite/hypotenuse
so sin (x) = 12/13
answer is 12/13
I=PRT
P=present amount
R=rate
T=time
basically
20+interest<u /> is more than or equal to 400
20+I<u>></u>400
minus 20 both sides
I<u>></u>380
solve
P=20
R=3%=0.03
T=?
I=PRT
380<u><</u>I=PRT
380<u><</u>20(0.03)(T)
380<u><</u>0.6T
divide both sides by 0.6
633.33333<u><</u>T
633.33 years at least
-4/5 and -1/2
Taking the LCM of the 2 fractions we get the common denominator 10
-8/10 and - 5/10
Now we can see the second fraction (-5/10) is bigger
Thus the friend is wrong
