1. write the nth term of the following sequence in terms of the first term of the sequence. 10, 20, 40, . . 2.write the nth term of the following sequence in terms of the first term of the sequence. 2, -4, 8, -16, . . 3. write the nth term of the following sequence in terms of the first term of the sequence. a, a + 4, a + 8, .

If you roll two fair dice (one black die and one white die), in how many ways can you obtain a 4 on at least one die?

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?

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.