Based on the figure above, what is the equivalent value of cos 210°?

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

Can someone me i’m confused. will give brainliest and a whole bunch of points

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