The student council is selling school supplies as a fund raiser. Josh bought four pencils and two ballpoint pens for $0.74. Zach bought six pencils and five ballpoint pens for $1.53. Write a system of equations that can be used to find the cost of a pencil and the cost of a ballpoint pen where "p" represents pencils and "b" represents ballpoints pens. Group of answer choices

A 4p+2b=.744 p + 2 b = .74
6p+5b=1.536 p + 5 b = 1.53

B4p-2b=.744 p − 2 b = .74
6p-5b=-1.536 p − 5 b = − 1.53

C 4b+2p=.744 b + 2 p = .74
6b+5p=1.536 b + 5 p = 1.53

D 4p+2b=1.534 p + 2 b = 1.53
6p+5b=.74

Jeffery conducted a survey in his school and found that 30 of the 50 eighth grade students' favorite subject is mathematics. based on the results, jeffery concluded that out of the 200 students in his school, 120 students' favorite subject is mathematics. select the statement that is true about jeffery's conclusion. a. jeffery's conclusion is not valid because the sample was biased since only 200 students were surveyed. b. jeffery's conclusion is valid because the sample was random since all of the students were eighth grade students. c. jeffery's conclusion is valid because the sample was random. d. jeffery's conclusion is not valid because the sample was biased since all of the students were eighth grade students.

If using the method of completing the square to solve the quadratic equation x 2 + 16 x + 24 = 0 x 2 +16x+24=0, which number would have to be added to "complete the square"?

Sam's fruit cellar earns $0.40 profit for each banana that it sells. which expression show sam total profit from selling apples and banana select all that apply