Which equation provides the best estimate of the product of 229 and 3.22? Which is the best estimate of 61.4 + 88.3?

If you were constructing a triangular frame, and you had wood in the length of 4 inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood?

Y< 2x-3 y? mx+3 which value of m and which symbol result in the system of inequalities shown above having no solution? a) m=-2; > b) m=-1/2; < c) m=2; > d) m=2;

Ireally don't understand this, i'm really an idiot but i want to know how to figure this out. !