Need tell me the answer as well as the working out

Well since it is a shape made of individual shapes you have to find the volume of each shape first. Since each side of the face is 3 cm and the width is 10 you would multiply 3*3*10. After that you wind up with 90 which you then multiply by 5 because there are five shapes ending up with a total of 450 cm.

$250 deductible means jane must pay the first $250 of her bill. so the insurance company paid = (80% of bill) - deductible = (0.8 x $2550) - $250 = $2040 - $250 = $1790 and jane's cost is = (bill) - (insurance payment) = $2550 - $1790 = $760