An elephant needs to drink at least 40 gallons of water each day. a drinking tank contains 4 gallons of water. the elephant has already consumed 24 gallons of water. how many tanks x of water does the elephant need to drink? write your answer as an inequality. the solution {will receive 15 pts.}

Pls! does anybody know a shortcut for answering these types of questions in the future?

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?

Eden has a part time job. she is paid ? 7.20 an hour the week she worked 18 and a half hours how much is she paid