Simplify and then evaluate the equation
when a = 3.
4a2 + 6a - 3(a + 4) + 15 = [?]

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?

The perimeter of a rectangular rug is 24 feet. the length of the rug is 1 2/5 i s width. what is the area of the rug

What is the slope-intercept from of the equation y+5=4(x+8)?