First do PEMDAS
There's no parenthesis. So move on to exponent. There's also no exponents. Move on to multiplication. There it is.
12×5=60.
There's no division so now next one is addition. Hey look! There is addition.
60+55=115.
So 115 is your answer.
Wouldn't this be $90-$27 which is 63, 63 being the cost of your earrings
125feet/5sec = 25feet/sec
John would play soccer for 84 minutes in one week. Just divide 60 by 5 getting you 12 and then multiply 12 by getting you 84.