Variable a is 4 more than variable b. Variable a is also 1 less than b. Which of the following pairs of equations best models the relationship between a and b? a = b + 4
a = b − 1
a = 4b
a = b + 1
b = a + 4
b = a − 1
b = 4a
b = a + 1

Acircle has a radius of 5/6 units and is centered at (3.6, 7.8) write the equation of this circle

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount