How do i solve the system 2x=y-10,x+7=y

Jack is considering a list of features and fees for denver bank. jack plans on using network atms about 4 times per month. what would be jack’s total estimated annual fees for a checking account with direct paycheck deposit, one overdraft per year, and no 2nd copies of statements?

Which expression gives the area of the triangle shown below

How do you summarize data in a two-way frequency table?