Triangles ABC and DEF are mathematically similar. CB 9 cm FE 13.5 cm The area of triangle ABC is 34 cm?. Calculate the area of triangle DEF.

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20