Mrs. Lincoln is ordering sets of place-value blocks for the third, fourth, and fifth graders. She wants 1 set for each student, and there are 7 sets of blocks in a carton. How many cartons should Mrs. Lincoln order?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.