HELP I WILL AWARD BRAINLIEST! I am going to list my entire quiz here, if you can answer them all today: 1. Determine the annual amount that an investor would earn on a rental property that pays $975 per month. 2. You have a profit of $45 per share on a stock. Given you sold 1500 shares of the stock, how much profit did you make? 3. Supposed that you earned $24.75 per hour as a contract teacher. If you work 5 hours a day, 4 days a week. What would your gross income be for 4 weeks? 4. You have an annual earned income of $48,000 and a passive income from internet advertisements paying $2,100 per month. You also sold a boat last year for $9,700. Given this information, determine the amount you made last year prior to taxes? If you can answer these in the next 25 minutes I will award you brainliest. Please and thank you

1.    11,700

2.   65,700

3.   495

4.   12400

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step-by-step explanation:

6x9

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!