A survey of 280 families showed that 60 had a dog only;
40 had a cat only;
23 had a parakeet only;
19 had a dog and a parakeet;
37 had a dog and a cat,;
5 had a cat and a parakeet, but not dog
105 had neither a cat nor a dog, and in addition did not have a parakeet;
How many had a parakeet and cat and dog?

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

Abe is a triangle. can you use the sss postulate or the sas postulate to prove triangle abc = triangle aed? by sss only neither apply both apply by sas only

Asix-sided number cube is rolled twice. what is the probability that the first roll is an even numbe and the second roll is a number greater than 4?