Write an expression that can be used to multiply 6 times 198 mentally

Kevin has just finished paying off his loan. he was assessed a service charge of $422. he paid off the principal and the interest by making weekly payments of $36.13 for four years. if the principal was $7,150, how much did kevin pay in finance charges, to the nearest dollar? a. $498 b. $365 c. $422 d. $787

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?

What is the length and width of a 84.5 square foot rug? will mark