Find the greatest common factor for 110x4, 70x6, 60x7

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?

Find two numbers if their sum is 91 and the ratio is 6: 7?

To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?