Pam asked a bank teller to cash a check for $130. the teller gave pam a total of 9 bills. she received $10 bills and $20 bills. how many of each type of bill did pamela receive?

With number 11 ( show how you got the answer)

Sally deposited money into a savings account paying 4% simple interest per year.the first year,she earn $75 in interest.how much interest will she earn during the following year?

The function f(x) is shown in this graph the function g(x)=6x