Write a numerical expression for each phrase. 1. three less than the product of eight and six. 2. thirteen more than the quotient of twenty and four. 3. four times the difference between seven and two

Step-by-step explanation:

b.-4 units

all you   do is count how many times you move

, 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