I'm confused i don't know what to do

1. What percentage of girls in Charlie's class would want a spider for a pet?
Ok, so 5 girls want a spider as a pet, and there are 30 kids in total in the class so 5/30 as a percentage is 56.66666667% so rounded thats 57%

2. What percentage of boys in Charlie's class would not want a spider for a pet?
So, there is 4 boys who dont want a spider as a pet and there are 30 people in the class so 4/30 is 13.33333333% so rounded that 13%

3. Supposed that 100 boys and 100 girls were asked if they would want a spider as a pet. based on the data how many would want a pet spider?
So, there are 17 in total who want a pet spider so 17/100 is 17% would want a pet spider.

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step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

1 the 1st term, 3 the 2nd term, 6 the 3rd term,etc.

note the following:

from the 1st term (1) to the 2nd term (3), we go up by 2,from the 2nd term (3) to the 3rd term (6), we go up by 3from the 3rd term (6) to the 4th term (10), we go up by 4, andfrom the 4th term (10) to the 5th term (15), we go up by 5.

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

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