Which phrase correctly represents the algebraic expression for 22 – n? A. A number decreased by twenty-two. B. The total of twenty two and a number. C. The difference of two and a number. D. Twenty-two decreased by a number.

-5, your answer was correct

we know that

1) the inscribed angle measures half of the arc it comprises.

so

m∠dgf= > expression

2) the opposite angles in an inscribed quadrilateral are supplementary angles

so

m∠dgf=

m∠dgf=°

substitute in the expression to find the value of arc ef

therefore

the answer is

the measure of the arc ef is