Question:
For which value of x must the expression √97x be further simplified?
A. 5 B. 10 C. 15 D. 20
Answer:

Step-by-step explanation:
Given

Required
For what value of x can it be simplified
From the list of options, only (D) is correct
D. 20
Substitute 20 for x in 

Express 20 as 4 * 5

Reorder

Split




With other values of x, the given expression can not be simplified.
Hence:

The answer is 2.6 I got this by doing 38.24-35.64
Answer:
Hope this helps!!! :)
Step-by-step explanation:
#1: if there is buy 1 get 1 free, then buy 6 get 3 free. so 2.8 times 3 = $8.4
#2: 4 for $3. break it up to 1 for $0.75. now 0.75 times 6 = $4.5
#3: the second one. $4.5 < $8.4
#4: 45 times 12 = $54
765 / 9 = 85
9*100 = 900 but this is too much
900 - 765 = 135
9 goes into 135 15 times (9*10=90 which leaves 45 which is 9*5 so 5+10) so you minus 15 from the 100 that made 900
so 100 - 15 = 85