Joseph is building a doghouse. he wants it to be a replica of his house, but smaller. his house is 18 feet tall. he needs the doghouse to be between 3 and 4 feet tall. therefore, the doghouse should be what percentage of the size of his house? (provide and range)

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angle measure.

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0