The volume of a rectangular object can be calculated using the formula a. height × width b. surface area × weight c. length × width × height d. breadth × depth × girth

The correct answer is C because the formula for volume is: V=LxWxH. Where h=height, w=width, and L=length. V is the volume in cubic units, whether it be in cubic centimeters, cubic inches etc. So C is correct.

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the expression 15n + 2(3p) represents the amount isaiah spent buying gasoline and snacks, where n represents the price of each gallon of gasoline and p represents the cost of each snack that he bought. which statement is true about the amount isaiah spent?

the answer would be c