Answer:
the first one is correct
Step-by-step explanation:
mark brainliest please
Step-by-step explanation:
2/5 of marbles are blue
= 3/5 of marble are not blue.
Number of non-blue marbles = 500 * (3/5) = 300.
300 marbles are not blue.
![\bf \qquad \textit{Simple Interest Earned}\\\\ I = Prt\qquad \begin{cases} I=\textit{interest earned}\to &\$2\\ P=\textit{original amount}\to& \$25\\ r=rate \\ t=years\to &\frac{1}{2} \end{cases}](https://tex.z-dn.net/?f=%5Cbf%20%5Cqquad%20%5Ctextit%7BSimple%20Interest%20Earned%7D%5C%5C%5C%5C%0AI%20%3D%20Prt%5Cqquad%20%0A%5Cbegin%7Bcases%7D%0AI%3D%5Ctextit%7Binterest%20earned%7D%5Cto%20%26%5C%242%5C%5C%0AP%3D%5Ctextit%7Boriginal%20amount%7D%5Cto%26%20%5C%2425%5C%5C%0Ar%3Drate%20%5C%5C%0At%3Dyears%5Cto%20%26%5Cfrac%7B1%7D%7B2%7D%0A%5Cend%7Bcases%7D)
bearing in mind, "t" is in years, 6months is just 1/2 year
solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form
The perimeter of the a and BC is 14 unitsBecause if you add all of the sides together you get 14 and I need points