4² − 7 + 55 − 74 + 3 (Ascending with respect to n):

Mrs. gehrke said cheddar weighs 16.8 pounds. he actually weighs 15.2 pounds. what is the percent error?

Benjamin is making bow ties. how many 1/2yards lomg bow ties can he make if he has 18 feet of fabric?

Will needs 8 hours of sleep every night, brad needs 9 hours, and nick needs 10. one saturday, they all have to get up at 6 a.m. to go fishing. on friday evening, who will be the first to bed?