Burniece solved the following equation: 4x − 2x + 8 = 6(x + 4) step work justification 1 2x + 8 = 6(x + 4) combine like terms 2 2x + 8 = 6x + 24 distributive property 3 −4x + 8 = 24 subtraction property of equality 4 −4x = 16 addition property of equality 5 x = −4 division property of equality which step has an incorrect justification? step 1 step 2 step 3 step 4

The $x$-intercepts of the parabola $y = x^2 + bx + c$ are $(-3,0)$ and $(5,0).$ find the equation of the parabola, and submit your answer in $y = ax^2 + bx + c$ form.

The number of chocolate chips in an 18-ounce bag of chocolate chip cookies is approximately normally distributed with a mean of 1252 chips and standard deviation 129 chips. (a) what is the probability that a randomly selected bag contains between 1100 and 1500 chocolate chips, inclusive? (b) what is the probability that a randomly selected bag contains fewer than 1125 chocolate chips? (c) what proportion of bags contains more than 1225 chocolate chips? (d) what is the percentile rank of a bag that contains 1425 chocolate chips?

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.