Mindy saves more than $12.70 each week. In five weeks,
could she save $61.50, $63.00,
$62.90, or $64.20?

$63.00 is the closet answer.

Step-by-step explanation:

12.70 x 5

     12.7

×     5

       13  

       63.5

Therefore, 12.7×5=63.5.

$63.5

step-by-step explanation: i dont

d. 24+-0.114

step-by-step explanation:

the question requires us to calculate the approximate 95% confidence interval for the mean number of ounces of ketchup per bottle in the sample given the following statistics;

sample mean = 24

standard deviation, σ = 0.4

sample size , n = 49

the confidence interval for a population mean is calculated using the formula;

sample mean ± z-score*(σ/sqrt(n))

the z-score associated with a 95% confidence interval, from the standard normal tables, is;

1.96

substituting these values into the formula;

24 ± 1.96*(0.4/7)

= 24 ± 0.112

from the alternatives given, choice d is closest to the above expression;