Becky buys a drink that cost $3 and a sandwich that cost twice as much as the drink. She pays with a $10 bill and ask for her change in dimes. How many dimes does becky get back in change

How do you multiply a mixed fraction by a regular fraction

What is an equation of the line that passes through the point (-2,3) and is parallel to the line whose equations is y=3/2x-4? i am stuck between y=3/2x or y=3/2x+6 : (

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)