Question 2 of 20 : Select the best answer for the question.
2. 7 1/5 - 6 2/5= ?
O A. 1775
O B. 133/5
O 0.45
O D.145

Tiffany drives 285,120 feet before lunch and 628,320 feet after lunch. about how many kilometers does she drive all together

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.