I GIVE BRAINIEST Can someone please help me
With question number six and seven
But please show all your work
Also for six and seven you have to solve the system by elimination.

Is a currency whose value is tied to another currency, meaning that the exchange is fixed

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?