Hayley wants to buy 9 Coconutz bars. One Coconutz bar costs 42p.
A pack of 5 Coconutz bars costs £1.80
Work out the least that Hayley must spend.
You must show that your answer is the lowest total cost.
how do u work this out?

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

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?