What’s the best length estimate of notebook paper

Which radical expression is a rational number? a. √ 360 b. √ 644 c. √ 225 d. √ 122

50 will mark show all use the linear combination method to solve the system of equations. explain each step of your solution. if steps are not explained, you will not receive credit for that step. 2x+9y= -26 -3x-7y=13

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.