Ineed with 4 questions

1. add.

4/5 + 3 1/10

2. add.

18 5/12 + 8 10/17 + 23 7/12 + 28 7/17

3.

bess practices trumpet 1/2 hr on monday and 1 3/5 hr on wednesday.

how many hours does bess practice trumpet?

4.

what is the perimeter of the figure?

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?

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?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²