Grace is 7 years older than Elena. Grace is also 15 years old. Which of the following equations can be used to find out how old Elena
is?
O e + 7 = 15
O e-7 = 15
0 7 + 15 = e
O e = 7 (15)

Which is the graph of the function y=2(4)^x

Somone me i want to know what 18 hours out of 24 hours in a fraction

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?