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Calculate the number 4020

NUMBERMANIA: Calculate the number 4020 using numbers [7, 8, 3, 4, 95, 352] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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A new hair salon opened up for...

A new hair salon opened up for business right across the street from the old established hair cutters' place.
They put up a big bold sign which read: "WE GIVE SEVEN DOLLAR HAIR CUTS!"
Not to be outdone, the old Master Barber put up his own sign: "WE FIX SEVEN DOLLAR HAIR CUTS!"

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Lewis Urry

Died 19 Oct 2004 at age 77 (born 29 Jan 1927).Lewis Frederick Urry was a Canadian-American chemical engineer who invented the ubiquitous alkaline batteries and, later, lithium batteries. After a few years working in Canada for the company that made Eveready batteries, he was transferred in 1955 to its Cleveland, Ohio, laboratory where he began work on a new battery with better life-span than the carbon-zinc type of the time. He succeeded by using manganese dioxide, an alkaline electrolyte and powdered zinc (which he realized had greater surface area than solid zinc). A patent was filed 9 Oct 1957, issued 15 Nov 1960, No. 2,960,558. Production began in 1959. Alkaline batteries are estimated to be 80% of all dry cell batteries now sold in the world. The Smithsonian Institution displays his prototype alkaline battery. Urry held over 50 patents.«

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