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Omar takes another card from the pack. If the mean of the six numbers is -1, what number did he pick?
Omar takes another card from the pack. If the difference between the highest and lowest of the six numbers is 12, wha…
It was found that the recording of the times was inaccurate. The correct times were all one minute more than recorded…
(a) Zara owns a hairdressing salon. She buys a pack of 60 bottles of shampoo from a warehouse for $240. She plans to …
Imran drives a distance of 180 km on a business trip. He drives the first 100 km at an average speed of x km/h. He dr…
f = (6c² - d) / 4. Find f when c = 8 and d = -4.