PLEASE HELP!!! The stem-and-leaf plot shows the number of words in the classified ads in a newspaper one day. How many ads had at least 15, but fewer than 30, words?

1/ 0 3 3 5 7 9
2/ 0 0 1 4 5
3/ 3 8 8
4/ 7
5/ 2
Key : 1/ 0 = 10

5

14

8

11

Which expression is equivalent to 2x^2+7x+4?

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

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 florida was approximately two times the population of california. b. the population of florida was approximately twenty times the population of california. c. the population of california was approximately twenty times the population of florida. d. the population of california was approximately two times the population of florida.