Rick has been losing weight at a constant rate since he has began his new fitness plan

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

his wife got 46,000

his son gets 11,500

each charity gets 6,900

hope this