Answer:
$2.30 for each jump rope.
Step-by-step explanation:
6.90 / 3 = 2.3
Standard form is just putting (in this case) variables in alphabetical order. First we simplify- 2x+4=4y would become 1/2x+1=y. This is already in standard form, as numbers w/o variables come at the end. simplifying the next one is more tricky. first you get a variable/number alone-
9-2x-2y=4x+3
9-2y=6x+3
6-2y=6x
1-1/3y=x
1=x+1/3y
3=x+y
x+y=3
sorry if I was wrong and not of any help, But I do believe this is correct.
Answer: Fraction of paint used for bird house = 
Step-by-step explanation:
Let quantity of the total paint be 1.
Given: Fraction of paint to book shelf = 
Fraction of Paint to leg = 
Fraction of Paint left = 
Let x= fraction of paint used for bird house.
Total paint = 

So, Fraction of paint used for bird house = 
{y=3x+1 |*5
{y=5x-3 |*(-3)
{5y=15x+5
{-3y=-15x+9
+___________
2y=14
{y=7
{7=3x+1
{3x=6
{y=7
{x=2
{y=7
The answer: C
:)