Best website to learn math from the beginning?

(exept Khan Academy)

Bob is 9 years younger then Joe. Three years ago, the sum of their ages was 27. Write and solve an equation to determine how old they both are now.

The Sunshine Droogs are unhappy as they have not yet been paid for their concert. It was agreed they would be paid eleven thousand, four hundred and fifty three pounds for the concert. What is this amount in numbers?

How would you explain what it means for two geometric shapes to be similar?

Is 1,250 ml to 1.25

Finding the Vertex What is the vertex of the quadratic function f (x) = (x - 8) (x - 2) ?

The quotient of 5:6 rounded to the nearest hundreth

How do you long divide with 3 digits?

Is 1/2 and 2/4 are equivalent fractions?

Let f (x) = 1-x and g (x) = x^3+4, find (f°g) (0)

Which ordered pair is a solution of the equation? 5 - 2g = 18