Sandy paid 30 dollars for a blouse. Cleaning cost after each wear is about $0.50. Sandy thinks she can wear the blouse 50 times before it worn out. What was the cost per wear? How many times should Sandy wear the blouse to reach a cost per wear of $1?

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points

Can you me with this question? i'll reward *30 points i just need with this one question so that i could solve the others. * edit: i originally set up the question to reward 30 points, but for some reason i can only reward 15. if you don't get 30, then i'm sorry. i'm still kind of new to this site