Aparallelogram can be formed from 2 equal triangles. true or false. give a counterexample if it is false

Which addition property is being illustrated below? (type commutative or associative) (6 + 7) + 1 = 6 + (7 + 1)

Adaycare center charges a $75 enrollment fee plus $100 per week. which of the following represents the cost of sending a child to daycare for 14 weeks?

Which statement justifies why angle ebc measures 90?