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10
plify 2(x + 7) + 3(x + 1)

What does independent variable and dependent variable mean in math?

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?

Yvaries directly as x. y =90 when x=6. find y when x=13