diff --git a/js/common/model/RAPRatioTuple.ts b/js/common/model/RAPRatioTuple.ts
index 0e810b3d..0ccde1cf 100644
--- a/js/common/model/RAPRatioTuple.ts
+++ b/js/common/model/RAPRatioTuple.ts
@@ -109,7 +109,7 @@ class RAPRatioTuple {
     return new RAPRatioTuple( this.antecedent, this.consequent );
   }
 
-  toStateObject( rapRatioTuple: RAPRatioTuple ): RAPRatioTupleState {
+  toStateObject(): RAPRatioTupleState {
     return {
       antecedent: this.antecedent,
       consequent: this.consequent
diff --git a/js/create/view/MyChallengeAccordionBox.ts b/js/create/view/MyChallengeAccordionBox.ts
index 5deeef5c..82451042 100644
--- a/js/create/view/MyChallengeAccordionBox.ts
+++ b/js/create/view/MyChallengeAccordionBox.ts
@@ -211,7 +211,7 @@ class MyChallengeAccordionBox extends AccordionBox {
     this.targetConsequentProperty = targetConsequentProperty;
 
     const accordionBoxUtterance = new ActivationUtterance();
-    this.expandedProperty.lazyLink( ( expanded: boolean ) => {
+    this.expandedProperty.lazyLink( () => {
       accordionBoxUtterance.alert = createAccordionBoxContextResponse();
       this.alertDescriptionUtterance( accordionBoxUtterance );
     } );
diff --git a/js/create/view/TickMarkRangeComboBoxNode.ts b/js/create/view/TickMarkRangeComboBoxNode.ts
index 090c5cca..66f2ad81 100644
--- a/js/create/view/TickMarkRangeComboBoxNode.ts
+++ b/js/create/view/TickMarkRangeComboBoxNode.ts
@@ -94,7 +94,7 @@ class TickMarkRangeComboBoxNode extends Node {
 
     const tickMarkRangeChangedUtterance = new ActivationUtterance();
 
-    tickMarkRangeProperty.lazyLink( ( range: number ) => {
+    tickMarkRangeProperty.lazyLink( () => {
       tickMarkRangeChangedUtterance.alert = this.getContextResponse();
       this.alertDescriptionUtterance( tickMarkRangeChangedUtterance );
     } );