please give me the answer

1 -10
2 -8
3 -2
4 -1

The sum of two numbers is 86, and their difference is 20. find the two numbers

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog