Joseph and his children went into a bakery where they sell cupcakes for $4.75 each and donuts for $1 each. Joseph has $40 to spend and must buy at least
10 cupcakes and donuts altogether. Also, he must buy at most 4 cupcakes. If x
represents the number of cupcakes purchased and y represents the number
of donuts purchased, write and solve a system of inequalities graphically and
determine one possible solution.

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.

What is the x-intercept and y-intercept of the equation 2x+1. 2o

Which graph has a rate of change of zero