(9x - 2)
(101 + 6) X (5x + 54)

what is the value of x and y

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%