Solve the following 4 problems by distributing and combining like terms for each problem. show all work. (do not solve for x) 1.) -2(x + 5) - 7 = 3x + 2(x - 5) 2.) 3(4x + 2) - 6x = 5x - 5(2+ x) 3.) 5(6x - 1) - 10x + 5 = 4(x + 10) - 4x 4.) -6(4 - x) + 12 = 3x - (x - 4)

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

493 would be the correct answer

step-by-step explanation: