Which of the side lengths could form a triangle? a) 2 cm, 2 cm, 4 cm b) 3 cm, 5 cm, 10 cm c) 3 cm, 4 cm, 5 cm d) 4 cm, 8 cm, 15 cm 21)

C. 3,4,5.

Step-by-step explanation:

The longest side must be < the sum of the two shorter sides, otherwise, you can't connect the 3 sides to make a triangle. In A, you get a straight line 4 cm long when you connect them together. In B and D you can't connect them together.

correct answer is infinitely many solutions

step-by-step explanation:

2(2x + 3) = -4 + 2(2x + 5)

solving the above equation:

4x + 6 = -4 +4x +10

combining like terms

4x -4x = -4+10-6

0=0

since both sides are 0=0, we end up into true statement it means it has infinite many solutions.

so correct answer is infinitely many solutions

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925