The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 22 minutes of calls is $22.27, and the remaining credit after 30 minutes of calls is $20.45. What is the remaining credit after 45 minutes of calls? PLEASE ANSWER.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

4.6875 pounds

step-by-step explanation: