©s is inversely proportional to t.
When s 0.9, t = 5
Work out t when s = 90

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Ashley spent half of her lunch money on a turkey sandwich. then she spent two-thirds of the money she had left on a bottle of juice and the rest of the money on a cookie. if the cookie cost $.75, how much lunch money did ashley have to start with?