In 1867, the United States purchased Alaska from Russia. Alaska is about 5.9 × 105 square miles. The United States paid about $12.20 per square mile. Approximately how much did the United States pay Russia for Alaska?

Complete the steps to answer the question.

1. Write the expression: (5.9 × 105)(12.2)

2. Multiply the decimal values: × 105

3. Write in scientific notation: ×

The United States paid Russia approximately for Alaska.

Students buying lunch at rockwell elementary school yesterday chose either burritos or pizza. 185 students chose burritos and 252 chose pizza. 1. estimate the number of students who brought lunch by rounding each number to the nearest hundred. 2. estimate how many students bought lunch by rounding each number to the nearest ten. 3. find the total number of students who brought lunch. which of your estimates is closer to the actual total? explain. 4. draw a figure on a sheet of paper. estimate how many pennies will fit inside the figure. check your prediction using pennies.

Which of the following is correct interpretation of the expression -4+13

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?