Put the following equation of a line into slope-intercept form, simplifying all fractions.
12y - 3x = -72

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

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?

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?