Which of the triangles below is not a right triangle A. 3cm, 4cm, 5cm
B. 27cm, 36cm, 45cm
C. 6in, 10in, 4in
D. 6ft, 8ft, 12ft

Please help me with this

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

Which image (a’ b’ c’ d’) of abcd cannot he produced using only reflections ?