Aditi is participating in a walkathon fundraiser. two anonymous donors agree to donate money according
to the distance she walks. the money, a, in dollars, that she receives from the first donor for walking d
kilometers is given by the formula ad) = 12d. the total money, t, in dollars, that she receives from both
donors for walking d kilometers is given by the formula t(d) = d' + 20d.
let b be the money that aditi receives from the second donor for walking d kilometers.
write a formula for b(d) in terms of a(d) and t(d).
b(d) =
write a formula for b(d) in terms of d.
b(d) =