You need to buy peanut butter. you have a 40¢ off coupon for creemy peanut butter. the coupon can be used on one 40 oz. jar, one 28 oz. jar, two 18 oz. jars, or two 12 oz. jars. the prices for creemy peanut butter are 12 oz. jar $2.85 18 oz. jar $3.49 28 oz. jar $5.15 40 oz. jar $6.29 the best buy is a. one 40 oz. jar b. one 28 oz. jar c. two 18 oz. jars d. two 12 oz. jars

i'm assuming it's looking for the missing length, which should be 4cm

hope this !

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.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.