C. since you are constantly dividing by 5
100 ÷ 5 = 20
20 ÷ 5 = 4
4 ÷ 5 = 0.8
And so on...
Answer c = (a-b)/d
Step-by-step explanation:
subtract b and divide by d
Step-by-step explanation:
If the scale factor of two similar solids is a: b:. then
(1) the ratio of corresponding perimeters is a:b
(2) the ratio of the base areas, of the lateral areas, and of the total areas is 
(3) the ratio of the volumes is 
I’m not extremely good at math but I think you need to make -x-y=1 into y=mx+b form and then solve your new equation!