The rectangle below has a length of 4x+3 and a width of 3x.
a) Find the perimeter
b) Find the are
c) Find the perimeter and are if x = 8

I am having trouble on Part c, so help would be much appreciated. Ty and have a good day.

Step-by-step explanation:

a) perimeter is 2(4x+3+3x)= 2(7x+3) = 14x+6

b) the area is (4x+3)3x= 12x²+9x

c) as the perimeter is 14x+6 and x=8, it will equal 14*8+6= 112+6=118

as the area is 12x²+9x it will equal 12*8*8+9*8=768+72=840

to find the total number of combinations, multiply the quantity of each item by each other:

2 pairs of shoes x 3 pairs of shorts = 6 different combinations.

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