II. Evaluate the following expressions. 6. 6 + 7 x 8
7. (25 + 11) x 2
8. 102 - 16 - 8
9. 3 + 6 x (5 + 4) = 3-7
10. (96 = 12) + 14 x (12 + 8) = 2
whats this plzz...​

6. 62

7. 72

8. 78

9. 57 = -4 ??

10. ??

Step-by-step explanation:

6. 7*8 = 56, 56+6 = 62

7. 25+11 = 36, 36*2 = 72

8. 102-16-8 = 78

First one is 13×8

second one is 36×2

third one is 9×9=4

forth one is I don't know

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;