180 grams of butter are needed to make 12 cupcakes. how many grams of butter are needed to make of 20 cupcakes?

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries. what fraction of kathy’s money was left?

Does anyone know how to do geometryme with this problem

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?