- 7x-2y=-13
x - 2y = 1
Solve by substitution

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

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?

The balance of susu's savings account can be represented by the variable b. the inequality describing her balance b > $30 . which could be a solution to the inequality?