A tile measures 75 cm by 20 cm. How many tiles will be required to cover a floor of size 4 m by 3m

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

If (x + 8) is a factor of f(x), which of the following must be true? both x = –8 and x = 8 are roots of f(x). neither x = –8 nor x = 8 is a root of f(x). f(–8) = 0 f(8) = 0

What is the perimeter of an isosceles triangle with each leg measuring 2x+3 and the base measuring 6x-2?