Hi! I need help with a question that I posted on my mobile account: brainyboi20 (with the Eminem pfp) its a math one and my most recent one. Thanks!

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

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?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?