Help! Solve for r.
12=r-(34-2)

Let's solve your equation step-by-step.

12=r−(34−2)

Step 1: Simplify both sides of the equation.

12=r−(34−2)

12=r+−1(34−2)(Distribute the Negative Sign)

12=r+(−1)(34)+(−1)(−2)

12=r+−34+2

12=(r)+(−34+2)(Combine Like Terms)

12=r+−32

12=r−32

Step 2: Flip the equation.

r−32=12

Step 3: Add 32 to both sides.

r−32+32=12+32

r=44

Step-by-step explanation:

answer: 8d

step-by-step explanation:

45+5= 50+5=55+5=60

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