explain the error a problem states that Ursula earns $9 per hour to write an expression that tells you how much money that Ursula earns for H hours. Joshua 9 / h and Sarah wrote 9h who's expression is correct and why

Sarah's expression is correct.

Step-by-step explanation:

she is correct because if you want to know how much money she would get after so many hours you would multiply. say if she worked 3 hours it would be 3*9= $27 in three hours not 9/3= $3 in three hours

60: 45 =12: 9 =4: 3 so the answer is 4: 3

a mantle plume is an upwelling of abnormally hot rock within the earth's mantle. as the heads of mantle plumes can partly melt when they reach shallow depths, they are thought to be the cause of volcanic centers known as hotspots and probably also to have caused flood basalts.

step-by-step explanation: