26. A panel of 4 is to be formed from 4 boys and 3 girls. If it must contain at least 2 girls the panel can be formed in: A. 9 ways C. 22 ways D. 30 ways B. 18 ways う7S。

Q: help

A: Please refer to the image below

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Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.