What is the unit rate for 840 feet in 40 seconds?

To which sets of numbers does -12 belong? choose all answers that are correct. a) natural numbers b) integers c) real numbers d) irrational numbers

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

The distance of a chord from the centre of a circle is 12cm and the lenght of the chord is 10cm. find the radius of the circle