Charles spent 1/4 of his allowance on a shirt, and 2/5 of the remainder on a book. A. What fraction of his allowance did he have left? B. If he spent $18 on the book, how much did he have at first?

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

How much orange juice do you need to make 2 servings of lemony orange slush?

Can someone me with these two circle theorem questions asap?