A TV costs £b. A DVD player costs £45 less than the TV. Write an expression for the total
cost of the TV and DVD player.

Three cylinders have a height of 8 cm. cylinder 1 has a radius of 1 cm. cylinder 2 has a radius of 2 cm. cylinder 3 has a radius of 3 cm. find the volume of each cylinder ( ! : ”0 )

For a function f(x), a) if f(7) = 22 then f^-1(22) = b) f^-1(f(c)) =

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale