At the supermarket Pryslide, 500ml bottles of shower gel cost $7 each. However, since the beginning of last week there has been a special offer: ‘Buy 2 bottles, get another one for $2.’ Yesterday, the total income from the sales of these bottles was $323. What is the maximum number of bottles that were bought for $2 yesterday?

third option: 6x+8

step-by-step explanation:

we can see that the given question is a sum of series and the values of n vary from 0 to 3

the first term will be:

when n=0, [(0)*x+2] => (0+2) => 2

when n=1, [(1)*x+2] => (x+2) => x+2

when n=2, [(2)*x+2] => 2x+2

when n=4, [(3)*x+2] => 3x+2

so adding up all the terms will give us:

=2+x+2+2x+2+3x+2

=x+2x+3x+2+2+2+2

=6x+8

so,

third option is the correct answer ..

the answer is

d.

5.3066 m2

step-by-step explanation: