The amount of water, y, that is needed to cook rice varies directly with the amount of uncooked rice, x, that is used. For every 1 cup of rice, 2 cups of water are needed. Which equation represents this situation?

What is the value of x in the equation 2(x-4) = 4(2x + 1)?

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

Marina baked cookies. she gave 3/4 of the cookies to the scout bake sale. she shared the remaining 6 cookies with her friends. how many cookies did marina bake?