Connie is hoping that her score on Classwork #7 will force her overall average to rise to the next higher letter grade. What is the lowest score that Connie can get on Classwork #7 that would force her overall average to rise to the next higher letter grade? Your answer will be a number between 0 and 15. Show your work. Average score is 10.16 (67.77% B-)

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?