Danielle put 4.902 gallons of gasoline in a gas tank. What is 4.902 written in expanded form?

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

The width of a rectangle is half as long as the length. the rectangle has an area of 18 square feet. what are the length and width of the rectangle?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units