Sam must practice piano for 75 minutes each week. He played 15 minutes on Monday and 36 minutes on Wednesday. How much did he have to play on Friday to finish all 75 minutes?

What are potential hypotheses (explanations) regarding why there are ecological equivalents between many metatherians and eutherians? discuss your hypothesis in terms of the processes that could lead to the current ecologies and distributions of metatherians and eutherians.

Find the slope of the line y =8/9x + 1.

What would be the reasons for lines 3 and 4? a. addition property; subtraction property b. addition property; solve c. substitution property; subtraction property d. substitution property; prove