A customer brings 8 pencils to the cashier. The cashier suggests that the total cost to
purchase 10 pencils would be less expensive. State whether the cashier is correct or
incorrect. Justify your answer.

please help!!

i dont get it. where are the "descriptions"?

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3