Answer:
25 pounds
Step-by-step explanation:
1.) 48 nails per pound / 12 nails per board = 4, one pound of nails can be used on 4 boards.
2.) 100 boards / 4 boards per pound = 25 pounds of nails.
The length the hypotenuse of an isosceles right triangle, or a 45-45-90 triangle, is always radical two times as long as any leg of the triangle. With this, we can set up an equation where x represents the length of a leg.
x

= 8

divide both sides by
x = 8
The length of a leg of the triangle is 8
The answer is C: 44 degrees