10 files declare their use of BusinessRule in Business Rules 8

AutocompleteTags.php in src/Controller/AutocompleteTags.php

BusinessRuleController.php in src/Controller/BusinessRuleController.php

BusinessRuleForm.php in src/Form/BusinessRuleForm.php

BusinessRuleListBuilder.php in src/BusinessRuleListBuilder.php

BusinessRulesItemsController.php in src/Controller/BusinessRulesItemsController.php

BusinessRulesProcessor.php in src/Util/BusinessRulesProcessor.php

BusinessRulesUtil.php in src/Util/BusinessRulesUtil.php

ConfigEntityCalculateDependencyTest.php in tests/src/Unit/ConfigEntityCalculateDependencyTest.php

Flowchart.php in src/Util/Flowchart/Flowchart.php

Matrix.php in src/Util/Flowchart/Matrix.php