~~ how do I get smart~~

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Angela took a general public aptitude test and scored in the 88th percentile for aptitude in accounting. what percentage of the scores were at or below her score?

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