Answer:
1) 100 - 2(35) - 2.50 = x
x= $27.50
2) x * 7 + 345 = 1,740.00
x= (1,740 - 345) / 7
x= $199.29
Answer:
Step-by-step explanation:
You used Pythagorean theroem which is correct as this does form a right triangle however 50 is the hypotenuse as the ladder is propped up against the wall. 30 would then be the height of the triangle and the base is unknown so...

50 squared minus thirty squared gives 1600 so:

Therefore x is the square root of 1600 which is 40
Sorry i’m not gonna graph it but with this info u easily can
the y intercept is -1
slope is 3/1
final equation is y=3x-1
5/(6x-2)=-1/(x+1)
You have to multiply both sides by the denominators so it becomes:
5*(x+1)=-1*(6x-2)
5x+5=-6x+2
3=x
This applies to the second one as well, if you need any more help, feel free to message me :)