$37.95 x12= 455.4 so Kevin’s cellphone will cost 455.4 for the year
Look here in a square which is what I imagine that drawing is all the angles are 90 degrees. A rectangle would be knowing two angles is know all of them one way or another so fix your work and you should know the answer
$13.68 because you do [.18+.06=.24] [18•.24=4.32] [18-4.32=13.68]