Candice spent 5 1/4 hours doing her homework. her brother, ronald, spent 1/2 that number of hours doing his homework. how many hours did ronald spend on his homework?

a.10/8
b.2 5/8
c.5 1/8
d.21/2

In two or more complete sentences describe how to determine the appropriate model for the set of data, (1,1), (3,2), (6,3), (11,4).

You can find the constant of proportionality by finding the ratio of

Kayla and alberto are selling fruit for a school fundraiser. customers can buy small boxes of grapefruit and large boxes of grapefruit. kayla sold 3 small boxes of grapefruit and 1 large box of grapefruit for a total of $65. alberto sold 1 small box of grapefruit and 1 large box of grapefruit for a total of $55. what is the cost each of one small box of grapefruit and one large box of grapefruit?