Abox contains 3 blue chips and 9 reds. a person select two chips without replacement

You use technology ans find a sum of 6.712e-8. write this sum in standard form

Gabrielle's age is three times mikhail's age. the sum of their ages is 40 . what is mikhail's age? __ years old

Acylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. what is the radius of the cone? a) 3 cm b) 5 cm c) 7 cm d) 9 cm