Answer:
2.7247 x 10^3
Step-by-step explanation:
Move the decimal as many spaces to the left until it is behind the first number.
Count how many spaces you moved.
Put that number as the power of x 10^?
19.2 is 24% of 80
Change the percentage to a decimal by dividing over 100:

Multiply 0.24 by 80:
Gradient=rise/run=y2-y1/x2-x1
= 7-3(4)/-4--4(0)
As you can't divide by zero the line's equation is x=-4 so it doesn't have a gradient as such. However, a parallel line would be the y-axis
What do you have to do with the following pattern? Please explain