Question 860919
"weekly allowance A of a child varies directly as their grade level G"; this means, {{{A=kG}}}.


" the average allowance of an 8th grade student is $8.56 per week", means {{{8.56=k*8}}}
{{{k=8.56/8}}}
{{{k=1.07}}}.


Now you have a formula for A, and you know the proportionality constant, k.