Seven of every 20 employees at v & b bank company are between the ages of 20 and 30. If there are 13,220 employees at v & b back company, how many are between the ages of 20 and 30?

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

X+ y = 5 ; x - y =3 solve using linear combination