Which expression will give the closest estimate to the answer for 1,900 × 17? a. 1,000 × 10 b. 1,900 × 10 c. 2,000 × 10 d. 2,000 × 20

What value is equivalent to 5 + [5 × (4 + 2)]? a) 35 b) 45 c) 60 d) 110

Which of the following statement about pascal's triangle are true?

Pam buys a sleeve of ball bearings for her skateboard. each of the bearings is 1 1/5 inches wide. the sleeve is 9 3/5 inches long. how many ball bearings are in the sleeve? show your work.