Someone plsspls help w this for points

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Solve these problems: 1.what is the perimeter of an equilateral triangle with sides measuring 6cm? 2. a regular pentagon has sides measuring 3.2 cm. what is its perimeter? 3. a regular decagon has sides of 3.5mm . what is it’s perimeter? 4. a regular octagon has a perimeter of 64cm. what is the length of one of the sides? 5. a regular hexagon has a perimeter of 72mm . what is the length of one of the sides? 6. what is the perimeter of a rhombus with sides measuring 11m?