Can anybody help me?? I would really appreciate it thank you so much! Stay safe you all! ❤️

An equation where variables are used to represent known values—function notation true or false

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers