What is the sun made of (by mass)? a. 50 percent hydrogen, 25 percent helium, 25 percent other elements b. 70 percent hydrogen, 28 percent helium, 2 percent other elements c. 90 percent dark matter, 10 percent ordinary matter d. 100 percent hydrogen and helium?

What is the volume of a cone with a height of 6 cm in the radius of 2 cm

Cate purchases $1600 worth of stock and her broker estimates it will increase in value by 4.2% each year. after about how many years will the value of cate's stock be about $2000

Corey added stickers to his party invitations. he put the same number of stickers on 7 invitations. which expression shows the number of stickers corey put on each invitation? let the variable s stand for the number of stickers corey started with. look at replys for options