When a liquid turns into a solid, which of the following also changes? A: chemical composition

B: size of molecules

C: Mass

D: energy

Pls help

Given: pqrs is a parallelogram prove: pr and qs bisect each other at t

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?

Recall that two angles are complementary if the sum of their measures is? 90°. find the measures of two complementary angles if one angle is twenty dash nine times the other angle.