Mae's cat weighs 5 pounds.

what is this weight written as a decimal?
a 5.125 lb
c 5.385 lb
b 5.375 lb
d 5.625 lb

If it’s 5% then it’s 0.05

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

, and

for

step-by-step explanation:

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

note the following:

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

, and for