What does the following expression means 2m+7

A mathematical expression can be represented in different ways, for instance, with the use of numbers, variables and operators ( +, -, *, /) or with by using the phrases in any language.

The expression given here i.e. 2m + 7, can also be translated to different phrases in English like:

Seven more than twice a number m

Or

Twice a number m is added to seven

Or

Double the number m plus seven

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answer: both chords and diameters have two endpoints on a circle. diameters must intersect the center of a circle.