Jade solved the following equation:

3 + 5x – 7 = 3x – 9

step work justification
1 5x + 3 – 7 = 3x – 9 commutative propertyof addition
2 5x – 4 = 3x – 9 addition property of equality
3 2x – 4 = –9 subtraction property of equality
4. 2x = –5. addition property of equality
5. x = –2.5. division property of equality

which step has an incorrect justification?
step 4
step 3
step 2
step 1

Which of the binomials below is a factor of this trinominal? x^2-13+30

The figure shows triangle def and line segment bc, which is parallel to ef: triangle def has a point b on side de and point c on side df. the line bc is parallel to the line ef. part a: is triangle def similar to triangle dbc? explain using what you know about triangle similarity. part b: which line segment on triangle dbc corresponds to line segment ef? explain your answer. part c: which angle on triangle dbc corresponds to angle f? explain your answer. asap

Jonathan puts $400 in a bank account. each year the account earns 6% simple interest. how much interest will be earned in 5 years?