exam Maths Puzzle Numerical Ability

Find three cnsecutive odd integers such that twice the first, decreased by the second is 35.

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Can you help me with this problem?

Matrices 7.
Find the indicated matrix.

Let A = [13] and B = [0 4]. Find 2A+B.
24 -16

The answer should
The function h(C)=331+3/5C represents the speed of sound, h, in meters per second, where C is the teperature in degrees Celcius. The Celcius temperature C can also be expressed as