What is constant of proportionality in the equation y = 2.5x ?

You estimate that a kitten weighs 8 pounds the actual weight of the kitten is 6 pounds what is the percent error rounded to the nearest hundreth of a percent

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

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).