Darius claims that the eighth root of 256 can be expressed as 25618. In order to prove his claim, what must Darius show is the value of (25618)8?

The triangles are similar. what is the value of x? x=

Satchi found a used bookstore that sells pre-owned dvds and cds. dvds cost $9 each, and cds cost $7 each. satchi can spend no more than $45.

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?