Solve for x (show work ) -(5x+7)+1=-5x-5

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?

Joe bought 4.25 pounds of pears for $7.18. if the equation 4.25x = 7.18models the situation, what does the variable stand for?

Rosa and lisa ade practicing free throws on the basketball court. so far,rosa has made one-and a-half times as many free throws as lisa.what is the unit ratio of rosa's free throws to lisa's free throws?