3 of 4 Antony spends £244 on a plane ticket and €110 on airport tax. Using £1 = €1.12, what
percentage of the total cost does Antony spend on airport tax?
Give your answer rounded to 1 dp.
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Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.