Abreakfast cereal is available in four different sizes. which is the best buy ? a. 10-ounce box for $2.80 b. 16-ounce box for $3.75 c. 24-ounce box for $4.50 d. 30-ounce box for $5.25

D. 30-ounce box for $5.25 is the best buy

Step-by-step explanation:

To determine which is the better buy, we need to determine the unit rate for each.  We will take the price and divide by the number of ounces.  The best price is the smallest price per ounce.

A. 10-ounce box for $2.80

$2.80/10 = $.28 per ounce

B. 16-ounce box for $3.75

$3.75/16 = $.234375 per ounce

Rounding to the nearest cent

$.23 per ounce

C. 24-ounce box for $4.50

$4.50/24 = $.1875 per ounce

Rounding to the nearest cent

$.19 per ounce

D. 30-ounce box for $5.25

$5.25/30 =$.175 per ounce

Rounding to the nearest cent

$.18 cent per ounce

d

step-by-step explanation:

given

y + 3 = - 4(x - 2) ← distribute the parenthesis

y + 3 = - 4x + 8 ( subtract 3 from both sides )

y = - 4x + 5 → d

, 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