Please solve these three questions
(Will add pictures)

1.
12 total
5 shades


What percent is shaded round to nearest tenth


2. Evaluate |-7.5| x |-21| -4


3. What is equivalent to 8 3/4
Options 83/4, 8.3, 8.75, 35/4, and 875%

(it’s a select all that apply question for number #3)

Please give correct answers only will mark as brainiest.