There are only blue cubes, red cubes and yellow cubes in a box. The probability of getting a red is 0.3
There are 15 red cubes in the box.
How many cubes is there all together?

Which elements in the set below are integers? 12, –3⁄4,√ 25 , –7, √ 5 , 14⁄7, 9 a. 12, √ 25 , –7, 9 b. 12, √ 25 , –7, 14⁄7, 9 c. –3⁄4, 25 , √ 5 ,14⁄7 d. 12, –7, 9

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

If f(x) = x+8 and g(x) = 4x- 3, find (f+g)(x)