Given the equation y = 1.3x what is the rate of growth or decay

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.