Find the percent of the markup if to the store is 350$ and the store is selling it for 402.50

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?

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

What is the solution to the equation below? 3/x-2+6=square root x-2 +8