How much helium to lift 1pound

Express the angle as a decimal, to the nearest ten-thousandth of a degree. 56°13'

in this line of circles, the ratio of the red circles to blue circles is 1:3. how many more red circles would need to be added to make the ratio of red to blue 3:1

What is the steepest slope? and what is its slope?

List 3 Numbers that satisfy the following inequality x<-2

Use the distributive property to find the equivalent expression. 7 (8 + d) = 56 +? d

What is x1/2 * x1/3 =

Adam drew two samw size rectangles and divide them into the same number of equal parts. He shaded 1/3 of one rectangle an 1/4 of the other rectangle. What is the west number of parts into which both rectángles could one divided

Two trains start heading toward each other from two cities, the distance between which is 720 km and meet right in the middle. The second train left 1 hour after the first train, but traveled at a speed 4 km/hour faster than the first train.

Divide X^2+77x+20 by x+9 what is the quotient and remainder?

Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined with a mixture that is 60% copper, resulting in 100 pounds of brass that is 65% copper.