Jonathan has a jar filled with nickels dimes and quarters he has 57 coins in total and the value of those causes $6.50 if he has 20 Nickels how many dimes and quarters does he have

How far is x from 5 on a number line?

The fence around a quadrilateral-shaped pasture is 3a^2+15a+9 long. three sides of the fence have the following lengths: 5a, 10a-2, a^2-7. what is the length of the fourth side of the fence?

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin