*please help! Taking a test! Asap please it would be helpful! :D* (Giving the rest of my points) (-4)² = ☐

-4² = ☐

-2² + 20 - (8 x 2)

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

Aline that intersects one of two parallel lines intersects the other also always sometimes never

What is the area of the shaded sector?