Which statements regarding triangle def are correct? select three options. ef is the longest side of △def. df = 6 cm de = cm df = cm de = cm

Part A:  90; Part B:  24.

Step-by-step explanation:

The number of blueberry muffins is 40% of the total number of muffins.

Part A:  There are 36 blueberry muffins.  This is 40% of the unknown number of muffins, x; this gives us

36 = 0.4x

Divide both sides by 0.4:

36/0.4 = 0.4x/0.4

90 = x

There were 90 total muffins.

Part B:  40% of the total number of muffins, 60, gives us the unknown number of blueberry muffins:

0.4(60) = x

24 = x

There were 24 blueberry muffins.