Line a: (-3,1) and (-7,-2)
What is slope of line a?

Anyone know? is appreciated! will mark brainliest if correct!

Beth divided 9 ounces of her granola recipe into 4 equal-sized amounts. she placed the amounts into individual bowls. the fraction 9/4 represents the number of ounces of granola in each bowl. which other number represents the amount of granola beth has in each bowl? (a) 1 1/4 (b) 2 1/4 (c) 1 3/4 (d) 3 3/4 i need !

Awindow washer cleans 42 windows in 2 hours. at this rate, how many windows did he clean in 180 minutes.