Pls help! several sixth grade classes are going on a field trip to a planetarium. the teachers divided the classes into 19 groups. there are 7 students in each group. how many students are going to the planetarium? use the equation c divided by 19 = 7.

hey! so 1 (25) out of 4 (100) is 25 so your answer is 25%. it's like quarters!

when rotating a figure 180 degrees, imagine that you are able to take the figure and turn it clockwise or counterclockwise around a center point. to rotate a figure 180 degrees, you will need to apply the rule (x, y) → (-x, -y). start by using a coordinate grid with coordinates for each vertex of the figure. the center point of the coordinate grid is located at (0, 0), which is what you will rotate the figure around. write down the original coordinates of the shape you are going to rotate. then, apply the rule. for example, coordinate (1, 2) becomes (-1, -2). another example would be, coordinate (-4, -2) becoming (4, 2). after you change each original coordinate to the rotated coordinate, you will draw your new figure.

step-by-step explanation:

i believe it's a.

i'm not sure on this one, most likely correct.