Which expression gives the same value as 3 + 5(x + 2) − 4 when you substitute x = 3 and x = 4?

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

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%