. Greg bought 5 new sweatshirts at one store for a total of $63. His younger brother Zachary bought 4 sweatshirts at a different store and paid $54. a. Explain the meaning of unit rate, and give the unit rate for each boy.
b. Which is the better buy?

Peaches cost $4.29 per pound. find the cost of two and a quarter pounds of peaches.

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?