Manny and susan have an egg carton full of eggs to use for their science project. manny uses 13 of the eggs and susan uses 12 of the eggs. which fraction of the eggs did manny and susan use for their project?

What is the axis of symmetry of the function f(x)=-(x+ 9)(x-21)

80 points suppose marcy made 45 posts online. if 23 of them contained an image, what percent of her posts had images? round your answer to the nearest whole percent. 54 percent 51 percent 49 percent 48 percent

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