Given that y varies directly with x, what is the equation of direct variation if y is 3 when x is 7?

Hannah has a biased coin. She is going to throw the coin once. The probability of getting heads is 0.7 Work out the probability of getting tails.

Jenna got 12, or 3/5, of her answers on the test right. How many questions were on the test?

A hot air balloon holds 3,249 cubic meters of helium. The density of helium is 0.1785 kilograms per cubic meter. How many kilograms of helium does the balloon contain, rounded to the nearest tenth of a kilogram? 1,873.4 kg 2,194.6 kg 2,721.2 kg 579.

8:712 in long division

20,000 pounds equals how many English tons? A. 2,000 tons B. 10,000 tons C. 1 ton D. 10 tons

Find the volume of a sphere with a radius of a 5 m. remember that the volume of a sphere is 4/3πr3

What is 12% written as a fraction? A. 1/5 B. 3/25 C. 4/25 D. 1/12

If it is a square is it a quadrilateral

Difference between cylinder and cone

1) Which polynomial is written in standard form for the polynomial below - 9x+x^3-x^4+3? A) - 9x+x^3-x^4+3 B) 9x+x^3+x^4+3 C) x^4+x^3+9x+3 D) - x^4+x^3-9x+3 2) What is the degree of the polynomial 3pq^4-2p^2q+q^3?