Fifteen minus three to the power of two Is this correct please help thank you
15 - 3 to the power of 2
15 - 3x3= 9 15-9= 6

The number of potato chips in a bag is normally distributed with a mean of 71 and a standard deviation of 2. approximately what percent of bags contain between 69 and 73 potato chips? approximately 68% approximately 71% approximately 95% approximately 99.7%

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

Line u passes through points (-52, -18) and (-29, 53). line v passes through points (90, 33) and (19, 56). are line u and line v parallel or perpendicular?