It seems that some the work is already here, but I'd be glad to!! So for #3 which is 9x^2+15x, we can factor out both a 3 and an x (3x) so we know that 3x * 3x =9x^2 and 3x * 5 = 15x so once we take the 3x out of the equation, we are left with 3x(3x+5) and that's as far as you can factor.
For #4, we see that the common factor is 10m because 10m * 2n = 20mn and 10m * 3 = 30m so once we take 10m out of the original, it becomes 10m(2n-3)
For #5, this one the common factor is 4xy because 4xy * 2xy=8x^2y^2 and 4xy*x= 4x^2y and 4xy*3=12xy so once we take the 4xy out of the equation, it becomes 4xy(2xy-x-3)
Hope this helps!
I got 0.625% but if it has to be rounded which I'm pretty sure it does then the answer is 63% so go for 63%... hope that helped
Dilation- A figure that grows or shrinks but still maintains its very shape.
We have 2 points , so we can find a slope
m=( y2 - y1)/(x2 - x1)
m = (-3 - 0)/ (0- (-15/2)) = -3/(15/2) = (-3 *2)/15 = -2/5
y =(-2/5)x + b
b is a y value of y-intercept point, so b= -3
y = (-2/5)x - 3
The answer is A. y = (-2/5)x - 3
