Please Solve This Quickly, I Really Need Help

The answer is 0.3^2 x 10 = the last number to get 0.9

then 0.9^2 = 0.81 x -10 = 8.1     the actual jump =  + 1

We go back 1 places before to do missing sum

so that 0.3 x 1  = 0.3 x -9 = -2.7

Therefore the +1 numbers are decreasing from 10  to -10 then increasing in negative value from -10 to -9 etc.

mxb67

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages