Luna and Ginny each cast magic spells. The ratio of spells Luna casts to spells Ginny casts is represented in the tape diagram. Based on the ratio, what is the number of spells Ginny casts when Luna casts 20 spells?
Ratio luna 4 ginny 5

Find two rational expressions that have the difference of 2-n/n-4

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Using the side-splitter theorem, daniel wrote a proportion for the segment formed by luke segment de. what is ec?