Answer: 
Step-by-step explanation:
Given: The total time taken by Evan to mow the 3 lawns = 
Time taken by Evan to mow the first lawn =
Time taken by Evan to mow the second lawn =
Now,Time taken by Evan to mow the third lawn =
⇒Time taken by Evan to mow the third lawn =
⇒Time taken by Evan to mow the third lawn =
Hence, the time taken by Evan to mow the third lawn = 
B. (0,s/q) ........................................................
Answer:
y= 3, (-5/4)
Step-by-step explanation:
4y^2-7y=15
4y^2 - 7y -15
(y-3)(4y+5)
Answer:
34.78 feet
Step-by-step explanation:
1) using the cosine function, I did cos(43)=x/51
This is because cosine is equal to adjacent over hypotnuse
Once I found x, I used the pythagorean theorem to get 34.78 feet