When expressed in scientific notion the number 1,230,000,000 is 1.23 x 10b. the value of b is.

a.2.
b. 7.
c 8.
d. 9.
e 10

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review

Janice determined there were 10 possible outcomes when tossing two coins and spinning a spinner numbered 1 through 6. what is the correct number? what might have been janice's error?

Maria found the least common multiple of 6 and 15. her work is shown below. multiples of 6: 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, . . multiples of 15: 15, 30, 45, 60, . . the least common multiple is 60. what is maria's error?