An online store sells dvds for $10 each the shipping charge for an entire order is $5.50 francs orders d dvds write an expression that represents the total cost of frank's dvds

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

Which number line correctly shows 0.8 + 0.3?