It is estimated that in china, more than 54,860,000 children take piano lessons.

which shows this number rounded to the nearest ten million?

a.
50,000,000

b.
55,000,000

c.
58,000,000

d.
60,000,000

The base of a triangle is 8 1 3 meters and the height of the triangle is the fourth root of 16 meters meters. what is the area of the triangle?

What is the absolute value of the complex number -4-sqrt2i

Jo divides a candy bar into eight equal pieces for her children to share she gives three pieces to sam three pieces to leslie and two pieces to margie rose the two month old baby does it doesn't get any what fraction shows how muchw candy each of the four children got. what's the answer to my question