Three times a number h​ is at least $-12​

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?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base