12.5 is the answer this is actually really easy I miss Beginning Algebra
Answer: He can predict that 420 students will be in support of the purchase.
Step-by-step explanation:
Since Randy surveyed one student out of every 5 he came across in the cafeteria, it means that if he came across five people, he will survey one, if he came across ten students, he will survey 2 and so on.
If then he surveyed a total of 140 students, then we can actually multiply the number by 5 to know the exact number of students he possibly came across in the cafeteria:
= 140 × 5
= Total of 700 students
If 84 out of the surveyed students supported the purchase, we can find what that figure represents in the total number of students in the cafeteria:
84/140 = x/700
We cross multiply
140 × X = 84 × 700
140X = 58,800
X = 58,800/140
X = 420 students
Therefore, he can predict that 420 students out of a total of 700 students in the cafeteria will be in support of the purchase of the P.E equipment
Cassie's total spent is equal to money spent on shares bought and commission charges of broker.
<u>Money spent on shares bought:</u>
- 92 shares of Hyren Airlines at $13.70 per share =
- 130 shares of Giaco Household Goods at $3.28 per share =
- 126 shares of Iwad Records at $8.06 per share =
The sum total is 
dollars
<u>Commission charges of broker:</u>
If broker charges $4.25 every 10 shares, he charges 
dollars per share.
Total number of shares bought by Cassie is 
shares.
Total spent on commissions, thus, is 
dollars.
Cassie's total money spent is 
dollars.
Rounded to nearest dollar, it is $2850.
ANSWER: $2850
I would go with an <span>irrational number because the 0.86421 is a real number and it can't be expressed as a fraction or ratio </span>
