Find the equation of the linear regression line. (Round each value to the nearest whole number

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

What is the reflection image of (5,-3) across the line y = -x?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)