Oh hi, it's nice to meet you!
A. Surveying the students about their favorite type of math problem.
and
C. Sampling water for contaminants
Answer:
a. He will need
of seed to cover the entire area.
b. He will need 5 bags of seed if he uses the highest setting and 7 bags of seed if he uses the lowest setting.
Step-by-step explanation:
a. You can calculate the area of his lawn by multiplying its dimensions.
The dimensions are:
by 
We can convert the mixed numbers to decimal numbers. To do this,we must divide the numerator by the denominator of the fraction and then we must add the quotient to the whole number part.
Then, these are:


Then:

He will need
of seed to cover the entire area.
b. Let be "h" the number of bags of seed that he will need if he uses the highest setting.
You know that one bag of seed will cover 500 square feet if he uses the highest setting. Then:

Let be "l" the number of bags of seed that he will need if he uses the lowest setting.
You know that one bag of seed will cover 300 square feet if he uses the lowest setting. Then:

Answer: $56
Step-by-step explanation:
12% of 50 is 6
Then 50+6
Hey there!
Okay let's get cracking :D
The equation is.... (2x/3) - 6 = 9
2x/3 = 15
2x = 45
<u>x = 22.5</u><u /> <----- And that is your answer!
I hope it helped!
<u>Please vote for me as Brainliest if there is a second answer!</u>