Beth writes a number that shows 60 parts out of 100. Select all that could be Beth's number

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

Which statement accurately explains whether a reflection over the y axis and a 270° counterclockwise rotation would map figure acb onto itself?

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.