Answer:

Step-by-step explanation:
5x - 24 = 3 * 2
5x - 24 = 6
5x = 30
x = 6
Each calculator sold for $12.67 . So 5 would be $63.35
We need to round the number to the nearest hundred throusands.
this means that we will check the number after the poaition of the hundred thousands, if it is 5 or more,then we will add one otherwise we will ignore it and add zeros.
based on this, the number in the position next to the hundred thousands is 8 which mean that we will add one to the hundred thousands positions while all others will become zero.
Therefore,
789,091 to the nearest hundred thousands is 800,000
168/56 or 3. 21/8 times 8/7 equals 168 over 56. Also can be 3
D.36 60 .... because 6 times 6 is 36 and 6 times 10 is 60