Samantha puts an initial $500 into a savings account. The account has a 4% annual compound interest rate. What is the equation that best represents Samantha's account?

Hint: Use the formula y = P(1 + r)x.

y = 500(1.4)x
y = 500(0.04)x
y = 500(1.04)x
y = 500(0.4)x

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?

An electrician cuts a 136 foot long piece of cable. one piece is 16 feet less than 3 times the length of the other piece. find the length of each piece

Astore sells a 28 oz. bottle of shampoo for $1.96. it also sells a 22oz. bottle of shampoo for $1.92 which bottle is the better deal?