HELP PLEASE What is the percent decrease of a set of headphones that went from an original price of $74.99 to $56.99?

I've never been good at math he told he loves but he keeps cheating on me, so it ain't adding up sis

Kayla made observations about the sellin price of a new brand of coffee that sold in the three different sized bags she recorded those observations in the following table 6 is $2.10 8 is $2.80 and 16 is to $5.60 use the relationship to predict the cost of a 20oz bag of coffee.

Tim open up a new saving account with a $50 deposit and plant to deposit $20 per week into the same account.write an expression to represent the total amount in his savings account.