Astudent is asked to solve the equation below and to justify her/his steps. identify what, if anything, is incorrect in her/his math or justification.

x + 4 = –8

step
justification
x + 4 = –8
given
x + 4 + (–4) = –8 + (–4)
addition property of equality
x = –4

a. the student mislabeled the work in the step 2 as "addition property of equality."
b. the student improperly applied the "addition property of equality" in step 2.
c. the student added improperly and got the wrong answer in step 3.
d. there is no error. the student's justification is correct.

Explain in a minimum of 2 sentences how to graph the equation of the absolute value function given a vertex of (-1,3) and a value of “a” equal to ½.

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.

What is 74 round to the nearest ten