Riko and Kate each baked some cookies. To begin with, the ratio of Riko’s cookies to Kate’s cookies was 2 : 3. After Kate gave ½ of her cookies to Riko, Riko had 21. How many cookies did Riko have at first? Please help!!

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

The fraction 7/9 is equivalent to a percent that is greater than 100%. truefalse