17 need
charlene paints portraits at a local art fair. she sells the portraits for $40 each. she spends $160 for paint and brushes. if the canvas for each painting costs $8, which equation and solution can be used to determine p, the number of portraits charlene sells before making a profit (breaking even).
a) 40p - 160 = 8p
b) 40p + 160 =8p
c) 40p + 8p=160
d) 40p = 160 + 8p

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 fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?