Uri walked 2 miles in 30 minutes . adam walked 10,560 feet in 45 minutes . there are 5,280 feet in 1 mile.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Which system of linear inequalities is represented by the graph?

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?