Monique had 6 dollars. she found 25 cents and then bought a book. she ended up with 7 quarters. which expression equals the number of dollars monique spent on the book?

$6.25-(7x $0.25)

$6.25-$1.75=

Monique spent $4.50 on the book

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse