-15.18 is the answer and you have added a = sign by mistake
Answer:
8/3 or 2 and 2/3
Step-by-step explanation:
Answer:
If Father is four times older than Mary, that would be 4 times 10-- which equals 40. Five years ago, Mary must have been 5 years old. So, multiply 7 and 5 and you'll get 35! Father would have been 35 years old.
I hope this helps!
Step-by-step explanation: