Please Help the question is below

A bag contains 24 blue and purple marbles. The number of purple marbles, p, is one less than four times the number of blue marbles, b. How many marbles are purple? Use the table to guess and check.

A). 5
B). 9
C). 15
D). 19

It said -1 and x 4 we do the opposite and add 1, but divide by 5 because you have to add 4 times p and p to get 5.

24 + 1 = 25

25 / 5 = 5

So P is 5. Double check

5 x 4 = 20 - 1 = 19

19 + 5 = 24

5 is the answer Hope this helps.

Step-by-step explanation:

sorry not sure

step-by-step explanation:

4 and 5)16.97 or 12√2

6)15.59 or 9√3

7)y = 15.59 or 9√3     x =27

8)17.80