The area of the triangle is 49 in2, so she can create only 2 triangles.
Step-by-step explanation:
Copy and rotate the triangle and place it next to the existing triangle to form a rectangle.
Part A:
1) 16
2) -25
3) 9
4) -7
I'm too lazy to do the rest, just pay attention in class next time
Well... to find 61 tens, just write 61 with the 1 in the tens place then all remaining places to the decimal get a zero (in this case that's just the ones place). So...
61 tens = 610
100 less than 610 is
610 - 100 = 510
