How can i rewrite that with exponents instead of repeated multiplication

On a piece of paper graft y+2> -3x-3 then determine which answer matches the graph you drew

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

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?