Find the exact value of tan(θ + φ) given that sin θ = 4/5 and sin φ = 5/13and that θ and φ are between 0 and π/2. note these angles are pythagorean triples.

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?

My hour hand points between the 8 and the 9 in 35 minutes it will be the next hour. what time is it ?

An octagonal prism has jow many lateral faces?