Frankie buys some stamps. she spends £15.30 on 20p and 50p stamps. she buys twice as many 20 p stamps as 50p stamps how many 20p stamps did she buy

The volume, v, of a rectangular prism is determined using the formula, where / is the length, w is the width, and his theheight of the prism. carltren solves for w and writes the equivalent equation w=using this formula, what is the width of a rectangular prism that has a volume of 138.24 cubic inches, a height of 9.6 inches,and a length of 3.2 inches?