Briana is getting materials for a chemistry experiment

2a+7+4ahow many terms? how many variables? any like terms? yes noif yes, which ones? what are the coefficients? any constants? yes noif yes, which ones? simplify the expression by combining like terms and constants: how many terms now?

1. what is the measure of ∠abc? what is the measure of ∠abd?

Which segments are congruent? o jn and ln o jn and nm o in and nk onk and nm