Help me does anybody know this?

In angle pqr find the measure of

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next

When i'm with my factor 5, my prodect is 20 .when i'm with my addend 6' my sum is 10.what number am i