Which of the following symbols indicates that a value is included in a solution set.

=
≠
○
●

Abcd ≅ klmn ≅ pqrs ≅ wxyz given that information, which figures are reflections of abcd?

In δabc, if the length of side b is 3 centimeters and the measures of ∠b and ∠c are 45° and 60°, respectively, what is the length of side c to two decimal places?

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25