(3m + 8)(2m − 4) standard form with steps plz!

Can anyone me with 32,33,36,37,and 40.

What is the difference between –12 and –5? what is the distance between –12 and –7 on a number line? units

In right triangle xyz, the right angle is located at vertex y. the length of line segment xy is 12.4 cm. the length of line segment yz is 15.1 cm. which is the approximate measure of angle yzx? 34.8° 39.4° 50.6° 55.2°