Can someone me gladly appreciate it !

could 2.8cm, 4.0cm, and 2.8cm, be the side lengths of a triangle?

true or false?

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)

One of the solutions to x2 - 2x – 15 = 0 is x = -3. what is the other solution? ox=-5 ox= -1 0 x=1 x = 5

What is the approximate mark up percentage rate before m equals $1740 marked up from p equals $19,422