How much principal must be deposited to earn $400 simple interest in 2 years at a rate of 5%? $40 $5,000 $8,000 $4,000​

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 price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false