How to convert $400.00 per week to a monthly figure

$400 per week is $1600 per month assuming theres 4 months

$400 a week is equal to $1600 in a month because there are four weeks in a month. $400 per week • 4 weeks = $1600 per month

Answer: r=4.5  feetexplanation: radius  r  is half of the diameter  d,⇒r=d2=92=4.5  feetidk i could be wrong

Ithink it’s b because it say 3 plastic rings and all the balls