Which best describes the relationship between the successive terms in the sequence shown?

2.4, –4.8, 9.6, –19.2

the common difference is –7.2.
the common difference is –2.4.
the common ratio is –2.0.
the common ratio is –0.5

Let the mean of the population be 38 instances of from 6" - 9" hatchings per nest, and let the standard deviation of the mean be 3. what sample mean would have a confidence level of 95% or a 2.5% margin of error?

Weak battery is considered to be a part of routine a. inspection b. wear and tear c. maintenance d. check

Tomas is making trail mix using granola and walnuts. he can spend a total of $12 on the ingredients. he buys 3 pounds of granola that costs $2.00 per pound. the walnuts cost $6 per pound. he uses the equation to represent the total cost, where x represents the number of pounds of granola and y represents the number of pounds of walnuts. he solves the equation for y, the number of pounds of walnuts he can buy. answer- b tomas added 6 to both sides of the equation instead of subtracting 6. just took the test