The measures of angle ABC are given by the expression on the table (shown below)
what is the measure of A and C?
I really need this answer fast please

Landon wrote that 3−2.6=4. which statement about his answer is true?

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83