Find the first 3 terms when the nth term is n(n+2)

  3, 8, 15

Step-by-step explanation:

Put the numbers 1, 2, and 3 where n is and do the evaluation for each of those values.

  n=1: 1(1+2) = 3

  n=2: 2(2+2) = 8

  n=3: 3(3+2) = 15

The first three terms are 3, 8, 15.

the ratio of white tiles to blue tiles is 48: 16. the ratio in it's simplest form is 3: 1.

step-by-step explanation:

ratio: take the first number and add a colon next to it, then add the second number after that. make sure the ratio order matches up with the written problem!

simplest form: we can simplify the ratio 48 : 16 by dividing both terms by the greatest common factor (gcf).

the gcf of 48 and 16 is 16.

divide both terms by 16:

48 ÷ 16 = 3

16 ÷ 16 = 1

reducing to simplest form:

48 : 16 = 3 : 1