Help please i need this now!

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

The frequency table shows the results of a survey comparing the number of beach towels sold for full price and at a discount during each of the three summer months. the store owner converts the frequency table to a conditional relative frequency table by row. which value should he use for x? round to the nearest hundredth. 0.89 0.90 0.92 0.96

Why is it so easy to buy on impulse and overspend with a credit card? what could you do to counteract this tendency?