What does it mean if you are in 7th grade and you skip pre algebra and go straight to algebra 1?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Asunflower was 20 1/2 inches tall. over the next 6 months, it grew to a height of 37 inches tall. what was the average yearly growth rate of the height of the plzzz write a proportion i will give you 100 points

What is the slope of the line that contains the points (-5, 6) and (14. - 7)?