Which is the best estimate for (2.8 times 10 Superscript 3 Baseline) (4.1 times 10 Superscript 6 Baseline) written in scientific notation?

7 times 10 Superscript 9

1.2 times 10 Superscript 10

1.5 times 10 Superscript 10

12 times 10 Superscript 18

James adds two numbers a + b. sally adds the same two numbers but reverse the order b + a what property of addition assures us that james and sally will get the same sum

3women sell hats at a craft fair weekly. the money they make at the fair is split into categories. 9% goes to pay taxes. $55 goes to pay rent for the space they sell in. the rest is split between the women. if the group make $706 at the fair, how much does each women get paid once the money is divided

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities