A rule you can use to find the answer to #10 is adding a layer of pennies around each edge
Answer:
the ratio of 3 to 9 is 1/3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Solve 
First you differentiate to find the gradient
dy/dx = (6 - - 8) / (-4 - 7)
= 14 / -11
= - 14/11
Then you use this formula
y - y1 = m (x - x1)
y1 being the y coordinate
x1 being the x coordinate
m being the gradient (or slope)
y - 6 = -14/11 (x - - 4)
y - 6 = -14/11x - 56/11
y = -14/11x + 10/11
47/15 in its simplest form would be 2/15
