Answer:
the scale factor is 25, 3000/125 scaled down,
Step-by-step explanation:
you can also explain this with a 25:1 ratio, 25 inches from the original scaled to 1 inch for the photo copy.
40 = x - 20
move -20 to the other side
sign changes from -20 to +20
40+20= x-20+20
40+20=x
60=x
Answer:
b 60
30.
the multiplication of a decimal less than 1 and a whole number is always smaller than the whole number, because we are taking a fraction of the whole number.
31.
the product of a decimal greater than 1 and a whole number is always greater than the whole number because we are scaling the whole number.
51-3=48 slice.
48 slice/ 4 pizza= 12 slice
each extra large pizza have 12 slice.
In cases like these, you simply have to multiply the choices you have for each step.
In fact, you can choose between 4 different crusts. For each of these crusts you can choose 4 different sauces. This means that there are 
choices at this point. In fact, if we call the crust options 1,2,3,4 and the sauce options A,B,C,D, the 16 possible combinations are
From here, you keep going multiplying the number of options for each step, for a total of
