Use a sum or difference identity to find the exact value of cos 345 degrees

An ulcer medication has 300 milligrams in 2 tablets. how many milligrams are in 3 tablets?

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Let x = a + bi and y = c + di and z = f + gi. which statements are true?