sarah is cutting a roll of cookie dough into pieces that are 1/2 thick. If the roll is 15 1/2 inches long, how many pieces can she make?​

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

25) 56(1) = 5b a. identity property of addition b. identity property of multiplication c. commutative property of multiplication d. commutative property of addition

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?